Campgrounds and RV parks in Montana, US

Montana stretches across more than 147,000 square miles between Glacier National Park in the northwest and Yellowstone National Park along the southern border, giving RV travelers two world-class anchors plus a corridor of mountain towns, river valleys, and prairie in between. Most trip itineraries follow Interstate 90 east-to-west, then branch north toward Flathead Lake and Glacier or south toward Yellowstone's north and west entrances. Campground inventory ranges from full-hookup commercial parks to first-come, first-served forest service sites. Near Glacier, the West Glacier KOA sits minutes from the park's west entrance, while Apgar Campground inside the park offers shaded sites along Lake McDonald. Near Yellowstone, Yellowstone Grizzly RV Park anchors West Yellowstone at the west entrance, and Yellowstone's Edge RV Park lines the Yellowstone River north of Gardiner. In Missoula, Jim & Mary's RV Park serves travelers using the city as a midpoint between the two national parks. State parks, U.S. Forest Service campgrounds in the Flathead, Gallatin, Custer, and Lolo national forests, and private RV resorts fill in the gaps. Cell coverage drops off quickly outside towns and inside Glacier, so route planning and offline maps matter.

Montana uses three main reservation systems. National park campgrounds, including Apgar Campground inside Glacier, are booked through Recreation.gov, where most sites open on a six-month rolling window and fill within minutes for peak July and August dates. Glacier also requires a separate vehicle reservation for Going-to-the-Sun Road during summer. Montana State Parks are reserved through stateparks.mt.gov or by phone at 855-922-6768, with bookings opening up to three months before arrival and a seven-night cap. At least 20 percent of state park sites are held back as first-come, first-served. Nonresidents need a Nonresident Entrance Pass, available online through Montana Fish, Wildlife and Parks or at the parks. Private RV parks like West Glacier KOA, Yellowstone Grizzly RV Park, Yellowstone's Edge RV Park, and Jim & Mary's RV Park book directly through their own websites or KOA's portal. For peak summer near Glacier or Yellowstone, plan to book private parks six to nine months ahead, especially for full-hookup pull-throughs that fit larger Class A or fifth-wheel rigs.