Highway # 6 begins in the south at Teslin, milepost 804 on the Alaska Highway and passes through Ross River on the Robert Campbell Highway # 4. Beyond MacMillan Pass northeast out of Ross River, the route becomes the Canol Road Heritage Trail and is popular with off-road cyclists.
To defend Alaska during World War II, the US and Canadian governments launched the CANOL (Canadian American Northern Oil Line) Project in 1942. Completed two years later, the pipeline carried oil from Norman Wells to a refinery in Whitehorse. The expensive and controversial pipeline was only used for one year before it was dismantled at the end of the war.
Designated a National Historic Site in 1990, the Canol is now used seasonally by tourists and mineral exploration companies. It is a scenic mountain route for adventurous travelers prepared for remote roads with no services.