Colorado War
Encyclopedia
The Colorado War was fought from 1863 to 1865 and was an Indian War between the Cheyenne
and Arapaho
tribes, against white settler
s and militia in the Colorado Territory
and adjacent regions. The Kiowa
, and the Comanche
played a minor role in actions that occurred in the southern part of the Territory along the Arkansas River
, while the Sioux
played a major role in actions that occurred along the South Platte River
along the Great Platte River Road
, the eastern portion of the Overland Trail. The United States government and Colorado Territory authorities participated through the Colorado volunteers, a citizens militia
while the United States Army
played a minor role. The war was centered on the Colorado Eastern Plains
.
The war included a particularly notorious episode in November 1864 known as the Sand Creek massacre
. The battle, initially described by the US press as a great victory, was later learned to be one of genocidal brutality. The massacre resulted in military and congressional hearings which established the culpability of John Chivington
, the commander of the Colorado Volunteers, and his troops.
and Arapaho
- to maintain control of the bison
migration grounds on the Great Plains
in the upper valleys of the South Platte
, Republican
, Smoky Hill
and Arkansas River
valleys, at the edge of the plains where they met the Rocky Mountains
. In the first Treaty of Fort Laramie (1851)
, the Cheyenne and Arapaho had agreed to accept as their designated hunting grounds the Eastern Plains between the South Platte and Arkansas Rivers.
The area was of little use to the American colonists before 1859, when the Colorado Gold Rush
brought the first large numbers of settler
s to the Colorado Piedmont
along the mountains, inundating the designated Native American lands with settlers and prospectors. The new settlers demanded that the US government extinguish the Native American claims and in the autumn of 1860 federal agents reopened negotiations with factions of the two tribes at a council on the Arkansas River. At the council, in the Treaty of Fort Wise
some of the Cheyenne and Arapaho agreed to surrender all their former hunting lands except for a small Indian reservation
along the Arkansas River between the northern boundary of New Mexico
and Sand Creek. Moreover, the tribes would be converted from nomad
ic hunting to a farming lifestyle. The new reservation, instead of being an open hunting
territory, would be surveyed
and divided among the tribal members, with each member receiving 40 acre
s (160,000 m²) of land. Moreover, the federal agents promised that each tribe would receive a US$30,000 subsidy
for 15 years, as well as a grist mill, saw mill, and schools. The leader of the Cheyenne who signed the treaty was Black Kettle
.
The policy of promoting a peaceful transition to farming, to which the tribes agreed, was thwarted in many cases by mismanagement and malfeasance of the politically-appointed federal agents. One notorious example was Samuel Colley, the federal agent of the Upper Arkansas during the early 1860s, who became known for his misappropriation of tribal goods, which he sold through his son Dexter, a trader.
The conflict occurred during the last two years of the American Civil War
. The same units of the 1st Colorado Volunteers
of the US Army that fought in this war also spearheaded the Union
counterattack in the New Mexico Campaign
against the Confederate Army.
The war was initiated in April, 1864 without warning by the whites, for the purpose of driving the Indians into a reservation by force, but following minor successes against small bands of surprised Indians it became a defensive battle against intense Cheyenne and Arapaho attacks on travelers on the Overland Trail
along the South Platte.
and the United States
on the northern Great Plains
had deteriorated substantially (see Dakota War of 1862
). Prior to this time, white emigrants passed relatively harmoniously through the area (known scornfully as the Great American Desert
) on their way along the California
, Mormon
, and the Oregon
Trails. After 1860, the discovery of gold
in the Rockies, as well as the growing westward encroachment of homesteaders
across the 100th meridian west
, led the Sioux and their related tribes to progressively resist further white use of the area. Especially troublesome from their vantage point was the slicing up of the bison herd by the increasingly heavily-used trails, as well as the development of new ones that further sliced the herds. The Colorado War marked the spreading of the trend among the Plains Tribes southward along Rockies, to the area passed by the trails. As a result, the United States Army, by then charged with overseeing the emigration routes, shifted the trails southward along the South Platte across present-day northeastern Colorado, then crossing up to the Laramie Plains
along the trail followed by the Overland Stage Line.
The Cheyenne and Arapaho had previously yielded a large area of the Eastern Plains in 1861 (largely to make room for the gold rush). The increased traffic in the area resulted in attacks by, most notoriously by the Kiowa
, who were regarded as historically one of the most antagonistic tribes to white encroachment of any kind. The Cheyenne and Arapaho, a pair of closely related Algonquian
-speaking tribes who migrated westward from the Great Lakes
area in the 18th century, were regarded as not as interested in conflict with the whites. They were somewhat caught in the crossfire of the war, but ironically suffered the most notorious losses. The participation of the U.S. Army in the war came to be seen as particularly brutal, forcing the Congress to take an official position condemning the actions of Colonel John Chivington
of the Colorado Volunteers. Initial reports in the Rocky Mountain News
had hailed Chivington as a great hero. Later more accurate accounts of the battle by survivors on the Cheyenne-Arapaho side reached the U.S. press. The evidence was enough to force Congress to hold hearings on the brutality in the spring of 1865. The Native American version was corroborated by a white Indian agent who survived the battle, whose testimony was printed in the Congressional Review as one of the most critical pieces of such testimony entered into the public record.
The Arapaho, who were largely nonhostile throughout the war, were forced to give up their last territory within the State of Colorado, as were the Kiowa and Comanche. The tribes were forced to Indian territory
in present-day Oklahoma. As a result, the only Native American presence remaining in the state was the Utes, regarding whom the U.S. recognized a claim to all lands west of the continental divide
.
U.S. Army operations during the war were conducted largely out of Fort Laramie, the regional headquarters of the Army. In the fall of 1863 the fort was commanded by Lt. Colonel William O. Collins of the 11th Ohio Volunteer Cavalry
. His son Caspar Collins (for whom Fort Caspar
was named) would later be killed in action against the Sioux nearby along the North Platte River
in present-day Wyoming
. Upon the initial relocation of the stage and emigrant routes southward to Colorado, relations were relatively peaceful between the U.S. and the intermixed tribes of the Arapaho and Cheyenne (they tended to live in bands of their own tribes, but in mixed proximity of camps of bands of the other). The Arapaho wintered in large villages along the Cache la Poudre River
where it emerges from the Laramie Foothills. The mountains just to the west were the firm possession of the Utes, who were descendant of the Uto-Aztecan people who had occupied the area for over a millennium.
The Army established Camp Collins
, named for the Fort Laramie commander, on the banks of the Poudre near present-day Laporte in early 1864. After a devastating flood in June, the Army relocated their camp southeast to high ground on the Poudre at present-day Fort Collins
. The camp was initially occupied by the 11th Ohio Volunteers, and later by elements of the Kansas Volunteers, both of which were shifted to other duties. The Colorado Volunteers later occupied the post and would see much action in the southeastern areas of the state. The attacks on the stage routes led to a general hostility among the whites in the new Colorado Territory against all Native American presence, no matter how cooperative and benign.
Cheyenne
Cheyenne are a Native American people of the Great Plains, who are of the Algonquian language family. The Cheyenne Nation is composed of two united tribes, the Só'taeo'o and the Tsétsêhéstâhese .The Cheyenne are thought to have branched off other tribes of Algonquian stock inhabiting lands...
and Arapaho
Arapaho
The Arapaho are a tribe of Native Americans historically living on the eastern plains of Colorado and Wyoming. They were close allies of the Cheyenne tribe and loosely aligned with the Sioux. Arapaho is an Algonquian language closely related to Gros Ventre, whose people are seen as an early...
tribes, against white settler
Settler
A settler is a person who has migrated to an area and established permanent residence there, often to colonize the area. Settlers are generally people who take up residence on land and cultivate it, as opposed to nomads...
s and militia in the Colorado Territory
Colorado Territory
The Territory of Colorado was an organized incorporated territory of the United States that existed from February 28, 1861, until August 1, 1876, when it was admitted to the Union as the State of Colorado....
and adjacent regions. The Kiowa
Kiowa
The Kiowa are a nation of American Indians and indigenous people of the Great Plains. They migrated from the northern plains to the southern plains in the late 17th century. In 1867, the Kiowa moved to a reservation in southwestern Oklahoma...
, and the Comanche
Comanche
The Comanche are a Native American ethnic group whose historic range consisted of present-day eastern New Mexico, southern Colorado, northeastern Arizona, southern Kansas, all of Oklahoma, and most of northwest Texas. Historically, the Comanches were hunter-gatherers, with a typical Plains Indian...
played a minor role in actions that occurred in the southern part of the Territory along the Arkansas River
Arkansas River
The Arkansas River is a major tributary of the Mississippi River. The Arkansas generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's initial basin starts in the Western United States in Colorado, specifically the Arkansas...
, while the Sioux
Sioux
The Sioux are Native American and First Nations people in North America. The term can refer to any ethnic group within the Great Sioux Nation or any of the nation's many language dialects...
played a major role in actions that occurred along the South Platte River
South Platte River
The South Platte River is one of the two principal tributaries of the Platte River and itself a major river of the American Midwest and the American Southwest/Mountain West, located in the U.S. states of Colorado and Nebraska...
along the Great Platte River Road
Great Platte River Road
The Great Platte River Road was the convergence point for the Trapper's Trail, the Oregon Trail, the Mormon Trail, the California Trail, the Pony Express route, and the military road from Fort Leavenworth to Fort Laramie across Nebraska. The Road, which extended from the Second Fort Kearny to Fort...
, the eastern portion of the Overland Trail. The United States government and Colorado Territory authorities participated through the Colorado volunteers, a citizens militia
Militia (United States)
The role of militia, also known as military service and duty, in the United States is complex and has transformed over time.Spitzer, Robert J.: The Politics of Gun Control, Page 36. Chatham House Publishers, Inc., 1995. " The term militia can be used to describe any number of groups within the...
while the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...
played a minor role. The war was centered on the Colorado Eastern Plains
Colorado Eastern Plains
The Eastern Plains of Colorado refers to a region of the U.S. state of Colorado east of the Rocky Mountains and east of the population centers of the Front Range.-Geography:...
.
The war included a particularly notorious episode in November 1864 known as the Sand Creek massacre
Sand Creek Massacre
As conflict between Indians and white settlers and soldiers in Colorado continued, many of the Cheyenne and Arapaho, including bands under Cheyenne chiefs Black Kettle and White Antelope, were resigned to negotiate peace. The chiefs had sought to maintain peace in spite of pressures from whites...
. The battle, initially described by the US press as a great victory, was later learned to be one of genocidal brutality. The massacre resulted in military and congressional hearings which established the culpability of John Chivington
John Chivington
John Milton Chivington was a colonel in the United States Army who served in the American Indian Wars during the Colorado War and the New Mexico Campaigns of the American Civil War...
, the commander of the Colorado Volunteers, and his troops.
Description
The war was fought over the ability of the North American Plains tribes - mainly the CheyenneCheyenne
Cheyenne are a Native American people of the Great Plains, who are of the Algonquian language family. The Cheyenne Nation is composed of two united tribes, the Só'taeo'o and the Tsétsêhéstâhese .The Cheyenne are thought to have branched off other tribes of Algonquian stock inhabiting lands...
and Arapaho
Arapaho
The Arapaho are a tribe of Native Americans historically living on the eastern plains of Colorado and Wyoming. They were close allies of the Cheyenne tribe and loosely aligned with the Sioux. Arapaho is an Algonquian language closely related to Gros Ventre, whose people are seen as an early...
- to maintain control of the bison
Bison
Members of the genus Bison are large, even-toed ungulates within the subfamily Bovinae. Two extant and four extinct species are recognized...
migration grounds on the Great Plains
Great Plains
The Great Plains are a broad expanse of flat land, much of it covered in prairie, steppe and grassland, which lies west of the Mississippi River and east of the Rocky Mountains in the United States and Canada. This area covers parts of the U.S...
in the upper valleys of the South Platte
South Platte River
The South Platte River is one of the two principal tributaries of the Platte River and itself a major river of the American Midwest and the American Southwest/Mountain West, located in the U.S. states of Colorado and Nebraska...
, Republican
Republican River
The Republican River is a river in the central Great Plains of North America, flowing through the U.S. states of Nebraska and Kansas.-Geography:...
, Smoky Hill
Smoky Hill River
The Smoky Hill River is a river in the central Great Plains of North America, running through the U.S. states of Colorado and Kansas.-Names:The Smoky Hill gets its name from the Smoky Hills region of north-central Kansas through which it flows...
and Arkansas River
Arkansas River
The Arkansas River is a major tributary of the Mississippi River. The Arkansas generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's initial basin starts in the Western United States in Colorado, specifically the Arkansas...
valleys, at the edge of the plains where they met the Rocky Mountains
Rocky Mountains
The Rocky Mountains are a major mountain range in western North America. The Rocky Mountains stretch more than from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States...
. In the first Treaty of Fort Laramie (1851)
Treaty of Fort Laramie (1851)
Although many European and European-American migrants to western North America had previously passed through the Great Plains on the Oregon and Santa Fe Trails, the California gold rush greatly increased traffic...
, the Cheyenne and Arapaho had agreed to accept as their designated hunting grounds the Eastern Plains between the South Platte and Arkansas Rivers.
The area was of little use to the American colonists before 1859, when the Colorado Gold Rush
Colorado Gold Rush
The Pike's Peak Gold Rush was the boom in gold prospecting and mining in the Pike's Peak Country of western Kansas Territory and southwestern Nebraska Territory of the United States that began in July 1858 and lasted until roughly the creation of the Colorado Territory on February 28, 1861...
brought the first large numbers of settler
Settler
A settler is a person who has migrated to an area and established permanent residence there, often to colonize the area. Settlers are generally people who take up residence on land and cultivate it, as opposed to nomads...
s to the Colorado Piedmont
Colorado Piedmont
The Colorado Piedmont is the geologic term for an area along the base of the foothills of the Front Range in north central Colorado in the United States...
along the mountains, inundating the designated Native American lands with settlers and prospectors. The new settlers demanded that the US government extinguish the Native American claims and in the autumn of 1860 federal agents reopened negotiations with factions of the two tribes at a council on the Arkansas River. At the council, in the Treaty of Fort Wise
Treaty of Fort Wise
The Treaty of Fort Wise of 1861 was a treaty entered into between the United States and six chiefs of the Southern Cheyenne and four of the Southern Arapaho Indian tribes. A significant proportion of Cheyennes opposed this treaty on the grounds that only a minority of Cheyenne chiefs had signed,...
some of the Cheyenne and Arapaho agreed to surrender all their former hunting lands except for a small Indian reservation
Indian reservation
An American Indian reservation is an area of land managed by a Native American tribe under the United States Department of the Interior's Bureau of Indian Affairs...
along the Arkansas River between the northern boundary of New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...
and Sand Creek. Moreover, the tribes would be converted from nomad
Nomad
Nomadic people , commonly known as itinerants in modern-day contexts, are communities of people who move from one place to another, rather than settling permanently in one location. There are an estimated 30-40 million nomads in the world. Many cultures have traditionally been nomadic, but...
ic hunting to a farming lifestyle. The new reservation, instead of being an open hunting
Hunting
Hunting is the practice of pursuing any living thing, usually wildlife, for food, recreation, or trade. In present-day use, the term refers to lawful hunting, as distinguished from poaching, which is the killing, trapping or capture of the hunted species contrary to applicable law...
territory, would be surveyed
Surveying
See Also: Public Land Survey SystemSurveying or land surveying is the technique, profession, and science of accurately determining the terrestrial or three-dimensional position of points and the distances and angles between them...
and divided among the tribal members, with each member receiving 40 acre
Acre
The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land.The acre is related...
s (160,000 m²) of land. Moreover, the federal agents promised that each tribe would receive a US$30,000 subsidy
Subsidy
A subsidy is an assistance paid to a business or economic sector. Most subsidies are made by the government to producers or distributors in an industry to prevent the decline of that industry or an increase in the prices of its products or simply to encourage it to hire more labor A subsidy (also...
for 15 years, as well as a grist mill, saw mill, and schools. The leader of the Cheyenne who signed the treaty was Black Kettle
Black Kettle
Chief Black Kettle was a leader of the Southern Cheyenne after 1854, who led efforts to resist American settlement from Kansas and Colorado territories. He was a peacemaker who accepted treaties to protect his people. He survived the Third Colorado Cavalry's Sand Creek Massacre on the Cheyenne...
.
The policy of promoting a peaceful transition to farming, to which the tribes agreed, was thwarted in many cases by mismanagement and malfeasance of the politically-appointed federal agents. One notorious example was Samuel Colley, the federal agent of the Upper Arkansas during the early 1860s, who became known for his misappropriation of tribal goods, which he sold through his son Dexter, a trader.
The conflict occurred during the last two years of the American Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...
. The same units of the 1st Colorado Volunteers
1st Colorado Volunteers
The 1st Colorado Volunteers was a volunteer infantry regiment of the United States Army formed in the Colorado Territory in 1861 and active in the American West in the late 19th century.-History:...
of the US Army that fought in this war also spearheaded the Union
Union (American Civil War)
During the American Civil War, the Union was a name used to refer to the federal government of the United States, which was supported by the twenty free states and five border slave states. It was opposed by 11 southern slave states that had declared a secession to join together to form the...
counterattack in the New Mexico Campaign
Battle of Glorieta Pass
The Battle of Glorieta Pass, fought from March 26 to 28, 1862 in northern New Mexico Territory, was the decisive battle of the New Mexico Campaign during the American Civil War. Dubbed the "Gettysburg of the West" by some historians, it was intended as the killer blow by Confederate forces to break...
against the Confederate Army.
The war was initiated in April, 1864 without warning by the whites, for the purpose of driving the Indians into a reservation by force, but following minor successes against small bands of surprised Indians it became a defensive battle against intense Cheyenne and Arapaho attacks on travelers on the Overland Trail
Overland Trail
The Overland Trail was a stagecoach and wagon trail in the American West during the 19th century. While portions of the route had been used by explorers and trappers since the 1820s, the Overland Trail was most heavily used in the 1860s as an alternative route to the Oregon, California and Mormon...
along the South Platte.
History
By the early 1860s, relations between the SiouxSioux
The Sioux are Native American and First Nations people in North America. The term can refer to any ethnic group within the Great Sioux Nation or any of the nation's many language dialects...
and the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
on the northern Great Plains
Great Plains
The Great Plains are a broad expanse of flat land, much of it covered in prairie, steppe and grassland, which lies west of the Mississippi River and east of the Rocky Mountains in the United States and Canada. This area covers parts of the U.S...
had deteriorated substantially (see Dakota War of 1862
Dakota War of 1862
The Dakota War of 1862, also known as the Sioux Uprising, was an armed conflict between the United States and several bands of the eastern Sioux. It began on August 17, 1862, along the Minnesota River in southwest Minnesota...
). Prior to this time, white emigrants passed relatively harmoniously through the area (known scornfully as the Great American Desert
Great American Desert
The term Great American Desert was used in the 19th century to describe the western part of the Great Plains east of the Rocky Mountains in North America....
) on their way along the California
California Trail
The California Trail was an emigrant trail of about across the western half of the North American continent from Missouri River towns to what is now the state of California...
, Mormon
Mormon Trail
The Mormon Trail or Mormon Pioneer Trail is the 1,300 mile route that members of The Church of Jesus Christ of Latter-day Saints traveled from 1846 to 1868...
, and the Oregon
Oregon Country
The Oregon Country was a predominantly American term referring to a disputed ownership region of the Pacific Northwest of North America. The region was occupied by British and French Canadian fur traders from before 1810, and American settlers from the mid-1830s, with its coastal areas north from...
Trails. After 1860, the discovery of gold
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...
in the Rockies, as well as the growing westward encroachment of homesteaders
Homesteading
Broadly defined, homesteading is a lifestyle of simple self-sufficiency.-Current practice:The term may apply to anyone who follows the back-to-the-land movement by adopting a sustainable, self-sufficient lifestyle. While land is no longer freely available in most areas of the world, homesteading...
across the 100th meridian west
100th meridian west
The meridian 100° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole....
, led the Sioux and their related tribes to progressively resist further white use of the area. Especially troublesome from their vantage point was the slicing up of the bison herd by the increasingly heavily-used trails, as well as the development of new ones that further sliced the herds. The Colorado War marked the spreading of the trend among the Plains Tribes southward along Rockies, to the area passed by the trails. As a result, the United States Army, by then charged with overseeing the emigration routes, shifted the trails southward along the South Platte across present-day northeastern Colorado, then crossing up to the Laramie Plains
Laramie Plains
The Laramie Plains is an arid highland in south central Wyoming in the United States. The plains extend along the upper basin of the Laramie River on the east side of the Medicine Bow Range. The city of Laramie is the largest community in the valley...
along the trail followed by the Overland Stage Line.
The Cheyenne and Arapaho had previously yielded a large area of the Eastern Plains in 1861 (largely to make room for the gold rush). The increased traffic in the area resulted in attacks by, most notoriously by the Kiowa
Kiowa
The Kiowa are a nation of American Indians and indigenous people of the Great Plains. They migrated from the northern plains to the southern plains in the late 17th century. In 1867, the Kiowa moved to a reservation in southwestern Oklahoma...
, who were regarded as historically one of the most antagonistic tribes to white encroachment of any kind. The Cheyenne and Arapaho, a pair of closely related Algonquian
Algonquian languages
The Algonquian languages also Algonkian) are a subfamily of Native American languages which includes most of the languages in the Algic language family. The name of the Algonquian language family is distinguished from the orthographically similar Algonquin dialect of the Ojibwe language, which is a...
-speaking tribes who migrated westward from the Great Lakes
Great Lakes
The Great Lakes are a collection of freshwater lakes located in northeastern North America, on the Canada – United States border. Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario, they form the largest group of freshwater lakes on Earth by total surface, coming in second by volume...
area in the 18th century, were regarded as not as interested in conflict with the whites. They were somewhat caught in the crossfire of the war, but ironically suffered the most notorious losses. The participation of the U.S. Army in the war came to be seen as particularly brutal, forcing the Congress to take an official position condemning the actions of Colonel John Chivington
John Chivington
John Milton Chivington was a colonel in the United States Army who served in the American Indian Wars during the Colorado War and the New Mexico Campaigns of the American Civil War...
of the Colorado Volunteers. Initial reports in the Rocky Mountain News
Rocky Mountain News
The Rocky Mountain News was a daily newspaper published in Denver, Colorado, United States from April 23, 1859, until February 27, 2009. It was owned by the E. W. Scripps Company from 1926 until its closing. As of March 2006, the Monday-Friday circulation was 255,427...
had hailed Chivington as a great hero. Later more accurate accounts of the battle by survivors on the Cheyenne-Arapaho side reached the U.S. press. The evidence was enough to force Congress to hold hearings on the brutality in the spring of 1865. The Native American version was corroborated by a white Indian agent who survived the battle, whose testimony was printed in the Congressional Review as one of the most critical pieces of such testimony entered into the public record.
The Arapaho, who were largely nonhostile throughout the war, were forced to give up their last territory within the State of Colorado, as were the Kiowa and Comanche. The tribes were forced to Indian territory
Indian Territory
The Indian Territory, also known as the Indian Territories and the Indian Country, was land set aside within the United States for the settlement of American Indians...
in present-day Oklahoma. As a result, the only Native American presence remaining in the state was the Utes, regarding whom the U.S. recognized a claim to all lands west of the continental divide
Continental divide
A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not connected to the open sea...
.
U.S. Army operations during the war were conducted largely out of Fort Laramie, the regional headquarters of the Army. In the fall of 1863 the fort was commanded by Lt. Colonel William O. Collins of the 11th Ohio Volunteer Cavalry
11th Ohio Cavalry
The 11th Ohio Cavalry was a volunteer cavalry regiment that served in the Union Army during the American Civil War. The regiment was stationed in the Dakota and Idaho territories to protect travelers and settlers from Native American raids.- Service :...
. His son Caspar Collins (for whom Fort Caspar
Fort Caspar
Fort Caspar was a military post of the United States Army in present-day Wyoming, named after 2nd Lieutenant Caspar Collins, a U.S. Army officer who was killed in the 1865 Battle of the Platte Bridge Station against the Lakota and Cheyenne...
was named) would later be killed in action against the Sioux nearby along the North Platte River
North Platte River
The North Platte River is a major tributary of the Platte River and is approximately long counting its many curves, It travels about distance. Its course lies in the U.S...
in present-day Wyoming
Wyoming
Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High...
. Upon the initial relocation of the stage and emigrant routes southward to Colorado, relations were relatively peaceful between the U.S. and the intermixed tribes of the Arapaho and Cheyenne (they tended to live in bands of their own tribes, but in mixed proximity of camps of bands of the other). The Arapaho wintered in large villages along the Cache la Poudre River
Cache La Poudre River
The Cache la Poudre River is in the state of Colorado in the United States.Its headwaters are in the Front Range in Larimer County, in the northern part of Rocky Mountain National Park. The river descends eastward in the mountains through the Roosevelt National Forest in Poudre Canyon...
where it emerges from the Laramie Foothills. The mountains just to the west were the firm possession of the Utes, who were descendant of the Uto-Aztecan people who had occupied the area for over a millennium.
The Army established Camp Collins
Camp Collins
Camp Collins was a 19th century outpost of the United States Army in the Colorado Territory. The fort was commissioned in the summer of 1862 to protect the Overland Trail from attacks by Native Americans in a conflict that later became known as the Colorado War...
, named for the Fort Laramie commander, on the banks of the Poudre near present-day Laporte in early 1864. After a devastating flood in June, the Army relocated their camp southeast to high ground on the Poudre at present-day Fort Collins
Fort Collins, Colorado
Fort Collins is a Home Rule Municipality situated on the Cache La Poudre River along the Colorado Front Range, and is the county seat and most populous city of Larimer County, Colorado, United States. Fort Collins is located north of the Colorado State Capitol in Denver. With a 2010 census...
. The camp was initially occupied by the 11th Ohio Volunteers, and later by elements of the Kansas Volunteers, both of which were shifted to other duties. The Colorado Volunteers later occupied the post and would see much action in the southeastern areas of the state. The attacks on the stage routes led to a general hostility among the whites in the new Colorado Territory against all Native American presence, no matter how cooperative and benign.