No reservations made anywhere, & none will likely be made for quite some time, but a fair amount of research, mostly roaming around street view of Google Earth looking for boondocking spots for our somewhat large 5er.
Since this will be a fifth trip north finding roads which have not been travelled before is tough. The North of Canada & Alaska really don't have that many roads to choose from.
We might give Denali NP a miss this time but try the Robert Campbell Highway & the Denali Highway which will be slow going but well within our tankage range even at the slow speed the gravel roads will demand. Looking forward to just winging it along those roads as CGs are extremely few to non existent.
The plan is to favour provincial parks, Yukon Government Parks & Alaskan State Recreation areas. These CGs give a true flavour of being in The North. The atmosphere of the private CGs you can get anywhere. They have their use if needing a dump, a fillup or laundry.
We are looking at six months MD, AK, rtn MD. This will likely be our last 'last' trip. We are getting long in the tooth & so is the truck & 5er.
A trip North should never be rushed.