15 campgrounds that take vehicles of 40 feet or more in Alaska

Every one of them is run by the Forest Service. The list is thickest in Chugach National Forest. Williwaw Campground takes the longest rig in Alaska at 145 feet.

A campground is listed when the longest permitted vehicle in its Recreation.gov site records is 40 feet or more. The figure is the longest single site, so most sites at a listed campground are shorter.