Yellowstone Falls
Encyclopedia
Yellowstone Falls consist of two major waterfalls on the Yellowstone River
Yellowstone River
The Yellowstone River is a tributary of the Missouri River, approximately long, in the western United States. Considered the principal tributary of the upper Missouri, the river and its tributaries drain a wide area stretching from the Rocky Mountains in the vicinity of the Yellowstone National...

, within Yellowstone National Park
Yellowstone National Park
Yellowstone National Park, established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872, is a national park located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho...

, 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...

, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. As the Yellowstone river flows north from Yellowstone Lake
Yellowstone Lake
Yellowstone Lake is the largest body of water in Yellowstone National Park, The lake is 7,732 feet above sea level and covers with 110 miles of shoreline. While the average depth of the lake is 139 feet its deepest spot is at least 390 feet...

, it leaves the Hayden Valley
Hayden Valley
Hayden Valley is a large, sub-alpine valley in Yellowstone National Park straddling the Yellowstone River between Yellowstone Falls and Yellowstone Lake. The valley floor along the river is an ancient lake bed from a time when Yellowstone Lake was much larger...

 and plunges first over Upper Yellowstone Falls and then a quarter mile (400 m) downstream over Lower Yellowstone Falls, at which point it then enters the Grand Canyon of the Yellowstone
Grand Canyon of the Yellowstone
The Grand Canyon of the Yellowstone is the first large canyon on the Yellowstone River downstream from Yellowstone Falls in Yellowstone National Park...

, which is up to 1,000 feet (304 m) deep.

Upper Yellowstone Falls

The upper falls (44°42′46"N 110°29′59"W) are 109 feet (33 m) high. The brink of the upper falls marks the junction between a hard rhyolite
Rhyolite
This page is about a volcanic rock. For the ghost town see Rhyolite, Nevada, and for the satellite system, see Rhyolite/Aquacade.Rhyolite is an igneous, volcanic rock, of felsic composition . It may have any texture from glassy to aphanitic to porphyritic...

 lava flow and weaker glassy lava that has been more heavily eroded.

Lower Yellowstone Falls

The lower falls (44°43′05"N 110°29′46"W) are 308 feet (94 m) high, or almost twice as high as Niagara
Niagara Falls
The Niagara Falls, located on the Niagara River draining Lake Erie into Lake Ontario, is the collective name for the Horseshoe Falls and the adjacent American Falls along with the comparatively small Bridal Veil Falls, which combined form the highest flow rate of any waterfalls in the world and has...

. The volume of water is in no way comparable to Niagara as the width of the Yellowstone River before it goes over the lower falls is 70 feet (22 m), whereas Niagara is a half mile (800 m).

The lower falls descend from the 590,000 year old Canyon Rhyolite lava flow. The lower falls of the Yellowstone is still the largest volume major waterfall in 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...

 of the United States. The volume of water flowing over the falls can vary from 63,500 USgal/s (240 m³/s) at peak runoff to 5,000 USgal/s (19 m³/s) in the fall.

History

It is believed that Jim Bridger
Jim Bridger
James Felix "Jim" Bridger was among the foremost mountain men, trappers, scouts and guides who explored and trapped the Western United States during the decades of 1820-1850, as well as mediating between native tribes and encroaching whites...

 may have been the first white American to see the falls in 1846. The Folsom Party, a private group of explorers working in close relationship with the U.S. Government, named the falls in 1869. The earliest images of the falls were drawn by Private Charles Moore, a member of the U.S. Army escort of the Washburn-Langford-Doane Expedition
Washburn-Langford-Doane Expedition
The Washburn Expedition of 1870, explored the region of northwestern Wyoming that a couple years later became Yellowstone National Park. Led by Henry Washburn, Nathaniel P. Langford and under U.S. Army escort led by Lt. Gustavus C...

 which explored the Yellowstone River in August–September 1870. During the Hayden Expedition
Ferdinand Vandeveer Hayden
Dr. Ferdinand Vandeveer Hayden was an American geologist noted for his pioneering surveying expeditions of the Rocky Mountains in the late 19th century. He was also a physician who served with the Union Army during the Civil War.-Early life:Ferdinand Hayden was born in Westfield, Massachusetts...

 of 1871, the falls were documented in photographs by William Henry Jackson
William Henry Jackson
William Henry Jackson was an American painter, Civil War, geological survey photographer and an explorer famous for his images of the American West...

 and later in paintings by Thomas Moran
Thomas Moran
Thomas Moran from Bolton, England was an American painter and printmaker of the Hudson River School in New York whose work often featured the Rocky Mountains. Moran and his family took residence in New York where he obtained work as an artist...

. In January 1887, Frank Jay Haynes
Frank Jay Haynes
Frank Jay Haynes , known as F. Jay or the Professor, to almost all that knew him, was a professional photographer, publisher and entrepreneur from Minnesota who played a major role in documenting through photographs, the settlement and early history of the great Northwest...

 took the first winter photographs of the lower falls.

Over the years the estimates of the height of Lower Falls has varied dramatically. In 1851 Jim Bridger estimated its height at 250 feet. One outrageous newspaper story from 1867 placed its height at "thousands of feet". A map from 1869 gives the falls its current name of Lower Falls for the first time and estimates the height at 350 feet.

Viewing the falls

Today, there are numerous vantage points for viewing the falls. The Canyon loop road skirts the west side of the canyon with several vehicle parking areas. One trail leads down to the brink of the lower falls, a steep third of a mile (600 m). Another vantage point descends from the east down a series of stairs attached to the cliffs.

The Lower Falls area is located just to the east of Canyon Village in Yellowstone National Park. A one-way loop drive takes you to the brink of the Grand Canyon of the Yellowstone and offers four views, with the last stop at the trail that leads to the top of the Falls.
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