The rider that went almost to Whitehorse got fuel at the Petro Canada station south of town then took the South Klondike Highway. The tracking seemed to stop just north of Fraser (Canadian Customs) There is an attraction there, the Yukon Suspension Bridge... maybe. Then they headed north to...
I just returned to Juneau after riding the Alcan south from Whitehorse and the construction season is in full swing. There where 6 construction zones and they were staging equipment on a few others. The longest we encountered was 40 km long.
Have a great ride.