119 campgrounds that take reservations in Montana

The Forest Service runs most of them. Custer Gallatin National Forest and Beaverhead-Deerlodge National Forest hold more of them than anywhere else in the state. Sizes run from 1 to 211 sites.

A campground is listed when some or all of its sites take reservations, usually through Recreation.gov. Partly reservable campgrounds appear here and on the first-come list.