Whitehorse Creek is a significant 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...

 in western 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...

, 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...

. It flows from the Canadian Rockies

Canadian Rockies

The Canadian Rockies comprise the Canadian segment of the North American Rocky Mountains range. They are the eastern part of the Canadian Cordillera, extending from the Interior Plains of Alberta to the Rocky Mountain Trench of British Columbia. The southern end borders Idaho and Montana of the USA...

, and is the first major tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Mcleod River

McLeod River

Mcleod River is a significant river in west-central Alberta, Canada. It forms in the foothills of the Canadian Rockies, and is a major tributary of the Athabasca River.-Course:...

, a major tributary of the Athabasca River

Athabasca River

The Athabasca River originates from the Columbia Glacier of the Columbia Icefield in Jasper National Park in Alberta, Canada...

.

At its origin, just east of Jasper National Park

Jasper National Park

Jasper National Park is the largest national park in the Canadian Rockies, spanning 10,878 km² . It is located in the province of Alberta, north of Banff National Park and west of the City of Edmonton. The park includes the glaciers of the Columbia Icefield, hot springs, lakes, waterfalls and...

, Whitehorse Creek forms from the meltwater of Mount Gregg and Mount Bryant. The creek flows west, taking on Harlequin Creek and Drummond Creek, before meeting the Mcleod

McLeod River

Mcleod River is a significant river in west-central Alberta, Canada. It forms in the foothills of the Canadian Rockies, and is a major tributary of the Athabasca River.-Course:...

.