We have never found the need for advanced reservations along the Alaskan Highway. We use The Milepost
Milepost 2016 and ALLSTAYS
ALLSTAYS to find and evaluate stopping points. When we are within a couple hours of stopping my navigator (DW) breaks out the I-Pad, fires up ALLSTAYS, and starts looking for something that looks good to us. We usually don't call ahead as we don't get the Canadian plan for cell phone calls, we only do the $2. a day for Canadian data on our Wi-Fi. As long as we stop by around 3:00pm we don't have trouble finding available spots. That being said we boondock 3-5 nights in a row before we want hookups. Many of the pulloffs along the Alaskan Highway are really large and back off the road and some offer spectacular views. We kind of like being alone in paradise!
The one place we always stop is Pioneer in Whitehorse. Large pull through sites with excellent power, friendly people, fuel discount, and good car wash.
Even this May when everyone in the lower 48 was heading North we didn't need reservations.
