When every campground within three hours is booked solid, there is a second option most people never use: dispersed camping — camping outside a developed campground on public land. It's generally free, needs no reservation, and there is a lot of it. The trade-off is that there are no toilets, no water, no trash pickup and no one to ask, so the rules are on you to get right before you drive out.
Dispersed (sometimes called boondocking or primitive camping) means pitching a tent or parking a vehicle outside a designated campground, on land that's open to it. On most national forest and BLM land that's allowed by default unless an area is specifically posted closed — the opposite of the reservation system, where nothing is yours until you book it. There's no fee and no booking, which also means no guaranteed spot: you're finding a place in person, so arrive with daylight left and a backup area in mind.
The reliable yes is national forest and BLM land outside developed recreation areas. The reliable no is national parks, where camping is limited to designated campgrounds and permitted backcountry zones, and state parks, which almost always require a designated site. Even inside a national forest, individual districts close areas seasonally or permanently — for fire risk, wildlife, watershed protection or overuse — and those closures are binding whether or not there's a sign at the pullout you found.
The document that answers “can I camp here” is the Forest Service's Motor Vehicle Use Map (MVUM) for that forest, or the equivalent BLM travel management map. It shows which roads are open to vehicles and, where roadside dispersed camping is permitted, how far off the road you may pull — often a set distance like 30 to 300 feet, and only into an existing pullout. MVUMs are free from the forest's own website. Download it offline: the places worth camping are exactly the places with no cell service. A quick call to the ranger district is still the fastest way to confirm current closures.
A 14-day limit within a rolling period (commonly 28 days) at one spot is the usual standard on both Forest Service and BLM land, after which you're expected to move a set distance away — but the exact numbers are set locally, so check the district. Campfires are the bigger risk: in California a free California Campfire Permit is required for any campfire, stove or lantern outside a developed campground, and during fire restrictions even that permit can be suspended. Check the forest's current fire restrictions the week you go, not the month before — they change fast in summer.
Use a site someone has clearly used before rather than making a new one; that's the single biggest difference between dispersed camping staying legal and getting an area closed. Camp at least 200 feet from lakes, streams and springs, and keep washing and dishwater that far out too. There is no trash service, so everything leaves with you, including food scraps and toilet paper. For human waste, a cathole 6–8 inches deep, 200 feet from water and camp, is the standard where no toilet exists. Bring all your own water and more than you plan to use.
The practical play is to hold both options. Keep a free cancellation alert on the campground you actually want — sold-out parks release sites constantly and CampSage emails you the moment one reopens — and have a dispersed area on the same forest picked out as the fallback if nothing frees up. Our national forest campground list is a good way to find which forest you'd be heading to, and the first-come, first-served guide covers the middle option: developed campgrounds with no reservation at all. The live map shows what's open right now across the western US.
Yes. Dispersed camping on national forest and BLM land is normally free and requires no reservation. You get no facilities in exchange — no water, toilets or trash.
Close to it, but not literally anywhere. Dispersed camping is generally allowed except where an area is posted closed, and roadside camping is usually limited to existing pullouts within a set distance of an open road. The forest's Motor Vehicle Use Map is the authority.
Commonly 14 days within a rolling 28-day period, after which you must move a set distance away. The exact limit is set by the local district, so confirm it for the forest or BLM field office you're visiting.
Usually no permit to camp, but often one for fire. In California a free California Campfire Permit is required for a campfire, stove or lantern outside a developed campground, and fire restrictions can override it entirely.
No. National parks limit camping to designated campgrounds and permitted backcountry areas. Dispersed camping is a national forest and BLM thing — often on land bordering the park.
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