I use the Backroadmapbooks for here in Canada. I also search for camping on crown lands on the internet. I also talk to people in parking lots that have a rig that looks like they might have some good ideas.
Usually with paper maps and landmarks to get around.
I got three of the Backroad Mapbooks couple weeks ago;
New Brunswick, Nova Scotia/PEI, and Newfoundland/Labrador and have to say these are terrific mapbooks. Two of them say on the cover "Includes Crown Land" and the other doesn't, for some reason, though I haven't yet checked to see if it actually does. These are very nicely done mapbooks, with a lot of accompanying info on various adventure spots. I'm sure I'll get more for the
rest of Canada as I wander other provinces.
TIP: I found out after I ordered and paid mine that they are less expensive through Amazon--
Backroad Mapbooks for Canada--especially if you're a Prime member, as shipping is less expensive. I paid $30 ($23.78 USD) for shipping to the states, and that was the least expensive option they had. Still a deal really, to purchase from them, as the US dollar is strong against the Canadian dollar right now, so the price ends up quite a bit less than is listed on their site even when you include approx $8USD shipping per book.