Alaska Highway in the context of Richardson Highway

Whitehorse (French pronunciation: [wajtɔʁs]) is the capital of Yukon, and the largest city in Northern Canada. It was incorporated in 1950 and is located at kilometre 1426 (Historic Mile 918) on the Alaska Highway in southern Yukon. Whitehorse's downtown and Riverdale areas occupy both shores of the Yukon River, which rises in British Columbia and meets the Bering Sea in Alaska. The city was named after the White Horse Rapids for their resemblance to the mane of a white horse.

Because of the city's location in the Whitehorse valley and relative proximity to the Pacific Ocean, the climate tends to be milder. At this latitude, winter days are short and summer days have up to about 19 hours of daylight.

The Northern Rocky Mountains, usually referred to as the Northern Rockies, are a subdivision of the Canadian Rockies comprising the northern half of the Canadian segment of the Rocky Mountains. While their northward limit is easily defined as the Liard River, which is the northward terminus of the whole Rockies, the southward limit is debatable, although the area of Mount Ovington and Monkman Pass is mentioned in some sources, as south from there are the Continental Ranges, which are the main spine of the Rockies forming the boundary between British Columbia and Alberta. Some use the term to mean only the area north of the Peace Arm of the Williston Reservoir, and in reference to Northern Rocky Mountains Provincial Park, while others consider the term to extend all the way south, beyond the limit of the Hart Ranges at Mount Ovington, to include the McBride area, the Sir Alexander Group and Mount Robson.

The area south of the Williston Reservoir, the Hart Ranges, is much more accessible and better known, while north of Lake Williston the Northern Rockies are extremely remote and rarely visited or photographed. The Hart Ranges are traversed by B.C. Highway 97 (the John Hart Highway) and the Peace River extension of the former BC Rail line (now part of Canadian National Railways), which use the Pine Pass, and also by the Tumbler Ridge spur line to the Sukunka River coalmines. The Alaska Highway traverses the northernmost part of the range via Stone Mountain and Muncho Lake Provincial Parks.

A corduroy road or log road is a type of road or timber trackway made by placing logs, perpendicular to the direction of the road over a low or swampy area. This is an improvement from mud or dirt roads, which are impassable. However, they are still rough in the best of conditions, and the shifting logs can pose a hazard for horses.

Corduroy roads can also be built as a foundation for other surfacing. If the logs are buried in wet, acidic, anaerobic soils such as peat or muskeg, they decay very slowly. A few corduroy road foundations that date back to the early 20th century still exist in North America. One example is the Alaska Highway between Burwash Landing and Koidern, Yukon, Canada, which was rebuilt in 1943, less than a year after the original route was graded on thin soil and vegetation over permafrost, by using corduroy, then building a gravel road on top. During the 1980s, the gravel was covered with a chip-seal. The late 1990s saw replacement of this road with modern road construction, including rerouting of the entire highway.