I know this is an older post but I can't help but throw my 2 bits in for the sake of other riders. First ... I'm not sure why anyone would want to put 800 miles in the saddle in one day anyway, unless they were in a race but I guess to each they're own. Distance and miles on a map is all relevant but when the tire hits the road it's fact. Vancouver to Dawson Creek is 740 miles, best safe average time is 18 hrs. Fastest posted speed limits in the province of British Columbia are 110, 100, 90 and yes friends to the south that's in kilometers not miles an hour, so say 70, 65, 55. It's going to take you some time to get out of or through the city of Vancouver and you're not really going to get motoring until you hit Hope.
There is a freeway leading in and out of Vancouver and trust me... so is the police. Once out of Hope you enter the Fraser Canyon heading up into the Caribou Country. Windy narrow older main Hiway. May, June is start of tourist season so expect congestion from our friends in the big RV's. The hiway goes straight through a number of small little towns speed limit 50k all through the Caribou. RV's will stop suddenly or pull over so granny can check out the local antique shops or fruit stands. All these little towns through this section have a small local RCMP police detachment who love to hide behind barns, billboard signs, dips in the hiway with their radar guns cocked and ready to go.
Once past William's Lake you can let the ponies run till you hit the outskirts of Prince George. The local hiway mounties patrol about 50 miles on either side of the city on a regular basis. After that you start into the Pine Pass and start to climb. Very scenic windy road and the furry fuzzy creatures come out to greet you. These animals though wild are used to traffic and for the most part... dumb as fence posts. Hitting a moose at 100k is not a pretty sight. Leaving the Pine Pass and entering the small town of Chetwynd you can make a choice of which direction to head north. You can go straight north toward Hudson Hope coming out just north of Ft. St. John or go east to Dawson Creek. If you go to Dawson Cr. I'll take your photo at the world famous Mile Zero Post ... start of the Alaska Hiway. If you've come from Vancouver in one day, I just might buy you a
... you'll need it.
Dawson Creek to Whitehorse Yukon is just over 900 miles. The 740 miles and the time it just took you to do that cannot be compared with what your going to drive now. After you pass Ft.ST. John your heading into a fairly remote part of the world. There is only 2 major towns between there and Whitehorse. Ft. Nelson Mile 300 ... Watson Lake Mile 630. My advise too is ... take your time smell the flowers. Plan your stops around those 2 towns take a few days to get to Whitehorse for a whole lot of reasons.
Best option ... early start from Dawson Creek or Ft. St. John make Liard Hot Springs the first night. Have a relaxing bath and a good nights sleep. Believe me after you have a dip in the springs ... you won't want to hit the saddle again that day. From Liard to Whitehorse the next day is no problem ... but then again there is many places to see and side trips to take before getting there. You go through a number of Provincial Parks in that leg of the trip. The animals in those parks know they're parks. Wild Sheep are a major concern, they will be in the middle of the road on a hair pin corner and will not move. Caribou are also bad for this then moose. Around Liard you may encounter Wild Bison or Buffalo they may look slow and docile but when approached especially on foot .... can I have your bike. I could go on here indefinitely but I've rambled on enough for this post. Please feel free to contact me for complete up to date trip information for your trip up the Alaska Hiway.