BLM vs National Forest vs National Park: Who Lets You Sleep There
Published August 14, 2026
The ground looks the same on both sides of the line. Same pines, same washboard road, same view down the valley. What changes at that line is which agency manages it, and with it the answer to whether you can sleep there tonight. Three federal agencies cover most of the public land in the West, and their overnight postures are genuinely different.
BLM: the most permissive of the three
Bureau of Land Management ground is where a lot of free camping happens. Away from developed recreation areas, camping outside a campground is commonly allowed, with a stay limit that often runs 14 nights in one place before you are expected to move on.
That is the general posture, not the local rule. Individual field offices set their own limits, and a busy area near a town like Moab or Sedona is far more likely to be signed for designated sites only, permits, or seasonal closures. Travel is usually restricted to existing routes, and a fresh set of tracks across a meadow is the single fastest way to get an area closed to everyone.
National Forest: similar posture, and a map you should actually read
US Forest Service ground works much the same way, with one document worth knowing about. The Motor Vehicle Use Map, the MVUM, is published free for each forest and shows which roads are open to which vehicles, and often where camping along those roads is permitted. Some forests allow camping within a short distance of any open road. Others designate specific corridors or numbered sites, and a few require a permit.
Fire restrictions are the other moving part. They change through the season, they can arrive mid-trip, and they are the rule most likely to have changed since whatever page you read on the way in.
National Park: designated campgrounds, and that is the answer
National Park Service units are the strict ones. Camping is allowed in designated campgrounds, most of which take reservations that fill months ahead at the popular parks. Sleeping in your vehicle in a pullout, a picnic area or a trailhead lot is generally prohibited, and enforcement in the flagship parks is real rather than theoretical.
Backcountry permits do exist, but they are for walking in and leaving the rig at a trailhead, not for parking overnight.
Worth knowing: the Park Service runs more than the famous parks. Monuments, seashores, recreation areas, historic sites and preserves are all NPS units, and a few of them are looser than a flagship park, with beach or backcountry vehicle camping under a permit. Check the specific unit, not the agency.
What holds across all three
A posted sign outranks everything, including the map that got you there. Stay limits exist to prevent residency, not to be clever about. Fire restrictions are seasonal and local. Pack out what you brought in, including waste, because the pattern that closes an area is trash and toilet paper, not tire tracks.
How to get the real answer
Call or stop at the office that manages the unit: a BLM field office, a Forest Service ranger district, a park visitor center. Ask something specific rather than something general. “I am in a 22-foot van, I want to camp along Forest Road 302 tonight, is there anything I should know” gets a useful answer. Rangers field that question all day, and they are the only source that is current.
For the broader picture, including state land, wilderness and restricted ground, see where you can legally camp on public land.
Where Vroam fits
Vroam shades the map by who manages the ground, so BLM, Forest Service and Park Service land read as three different colors before you commit to a road. Tap a shaded area and the app names the managing agency, the overnight rule of thumb, the stay limit where one is recorded, and the size of the unit.
Those overnight rules are derived general guidance, not the local regulation, and the app says so under every land block: policies vary and change, so check posted signs and local rules. Vroam tells you who manages the ground. It does not promise that camping there tonight is lawful, and confirming that is still yours to do, on the ground and with the agency.