Exceptional campground just off the Alaska Highway
This is a small, quiet campground just off the Alaska Highway between Tok and the border, sitting on the edge of a lake in the Tetlin National Wildlife Refuge. Most of the campsites are directly on the lake, but the ones away from the lake are large and relatively isolated, giving you the feeling of camping alone. It's also worth noting that mosquitoes can be fierce in this part of Alaska and it's less bad away from the water, although it's such a lovely lake that you might prefer to tolerate them in exchange for the view.
There's a small boat launch, a viewing platform, and a nature walk on an elevated boardwalk (which also makes it ADA accessible). The waterfowl viewing is excellent. I've stayed a number of times, spring through fall, and it's always a treat.