Battle Creek is a stream

Stream

A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

 that begins in southeastern Alberta

Alberta

Alberta is a province of Canada. It had an estimated population of 3.7 million in 2010 making it the most populous of Canada's three prairie provinces...

 along the border with Saskatchewan

Saskatchewan

Saskatchewan is a prairie province in Canada, which has an area of . Saskatchewan is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, and on the south by the U.S. states of Montana and North Dakota....

, in the Cypress Hills Interprovincial Park

Cypress Hills Interprovincial Park

Cypress Hills Interprovincial Park is an interprovincial park straddling the southern Alberta-Saskatchewan border, located southeast of Medicine Hat...

.

It flows into the Milk River

Milk River (Montana-Alberta)

The Milk River is a tributary of the Missouri River, long, in the United States state of Montana and the Canadian province of Alberta. Rising in the Rocky Mountains, the river drains a sparsely populated, semi-arid watershed of , ending just east of Fort Peck, Montana.-Geography:It is formed in...

 in Blaine County, Montana

Blaine County, Montana

-National protected areas:* Black Coulee National Wildlife Refuge* Nez Perce National Historical Park * Upper Missouri River Breaks National Monument -Economy:The main industry in Blaine County is Agriculture...

. Battle Creek and other tributaries of the Milk River in the southern portions of Alberta and Saskatchewan is one of two drainage areas of Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 where the water ultimately flows into the Gulf of Mexico

Gulf of Mexico

The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

, the other being the Poplar River

Poplar River (Saskatchewan-Montana)

The Poplar River is a tributary of the Missouri River, approximately 167 mi long in Saskatchewan in Canada and Montana in the United States....

 drainage in Saskatchewan.

Battle Creek flows for 203 km and has a drainage area of 2,600 km².

Fort Walsh

Fort Walsh

Fort Walsh is a National Historic Site of Canada that was a North-West Mounted Police fort and the site of the Cypress Hills Massacre. Administered by Parks Canada, it forms a constituent part of Cypress Hills Interprovincial Park....

 was established on the river on the Saskatchewan side of Cypress Hills Interprovincial Park.

Fish species

The fish

Fish

Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

 species include northern pike

Northern Pike

The northern pike , is a species of carnivorous fish of the genus Esox...

, rainbow trout

Rainbow trout

The rainbow trout is a species of salmonid native to tributaries of the Pacific Ocean in Asia and North America. The steelhead is a sea run rainbow trout usually returning to freshwater to spawn after 2 to 3 years at sea. In other words, rainbow trout and steelhead trout are the same species....

, brook trout

Brook trout

The brook trout, Salvelinus fontinalis, is a species of fish in the salmon family of order Salmoniformes. In many parts of its range, it is known as the speckled trout or squaretail. A potamodromous population in Lake Superior are known as coaster trout or, simply, as coasters...

, brown trout

Brown trout

The brown trout and the sea trout are fish of the same species....

, burbot

Burbot

The burbot is the only gadiform fish inhabiting freshwaters. It is also known as mariah, the lawyer, and eelpout. It is closely related to the marine common ling and the cusk...

, common carp

Common carp

The Common carp is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia. The wild populations are considered vulnerable to extinction, but the species has also been domesticated and introduced into environments worldwide, and is often considered an invasive...

, white sucker

White Sucker

The White Sucker is a bottom-feeding freshwater fish inhabiting North America from Labrador in the north to Georgia and New Mexico in the south. It is a long, round-bodied fish with a dark green, grey, copper, brown, or black back and sides and a light underbelly. When fullgrown, it is between 12...

 and shorthead redhorse

Shorthead redhorse

-Introduction:The Shorthead Redhorse is a wide-ranging species in North America that needs to be monitored throughout its range. The Shorthead Redhorse is native to central and eastern North America. However, its range has expanded to include areas like the Hudson estuary and Grayson County, Texas...

. The river along with Lake Diefenbaker

Lake Diefenbaker

Lake Diefenbaker is a reservoir in Southern Saskatchewan, Canada. It was formed by the construction of Gardiner Dam and the Qu'Appelle River Dam across the South Saskatchewan and Qu'Appelle Rivers respectively. Construction began in 1959 and the lake was filled in 1967. The lake is long with...

 are the only two bodies of water in Saskatchewan that support a reproducing population of rainbow trout. There is concern that Asian carp

Asian carp

Many species of heavy-bodied cyprinid fish are collectively known in the United States as Asian carp. Cyprinids from the subcontinent [for example, catla and mrigal ] are not included in this classification, and are known collectively as "Indian carp".Eight Asian carp have been substantially...

, particularly Silver carp

Silver carp

The silver carp is a species of freshwater cyprinid fish, a variety of Asian carp native to north and northeast Asia. It is cultivated in China....

 may spread up the river and the other south flowing rivers that drain into the Milk River

Milk River

-Rivers:Canada and the United States*The Milk River , a tributary of the upper Fraser River in Canada*The Milk River , United States*The Milk River , a tributary of the Missouri RiverJamaica*The Milk River...

, like the Frenchman River

Frenchman River

Frenchman River, or Frenchman Creek, is a river in Saskatchewan, Canada and Montana, United States. It is a tributary of the Milk River, itself a tributary of the Missouri.The river is approximately long....

.