National Park Backcountry Permits: How to Get One

A backcountry permit is issued by the park you are entering, under rules that park wrote, and almost nothing transfers from one park to the next. The quota, the lottery date, the walk-up odds, the fee, and the food storage requirement are all local. What does transfer is the shape of the system, and once you know the shape you can read any park’s permit page in about five minutes.

Where the permit requirement comes from

36 CFR 2.10(a) lets a superintendent “require permits, designate sites or areas, and establish conditions for camping.” 36 CFR 1.6 sets out how permits work generally, and 2.10(b)(8) makes “failing to obtain a permit, where required” a prohibited act.

Two things in 1.6 are worth knowing as a visitor. Paragraph (f) requires the superintendent to maintain “a compilation of those activities requiring a permit,” available to the public on request, so there is always an authoritative list even if the website is thin. Paragraph (g) makes it prohibited both to do the permitted activity without a permit and to violate any term or condition of one. The conditions printed on your permit, the itinerary, the group size, the specific campsite, are enforceable rules, not paperwork.

The five questions every park’s system answers

Work through these in order on any park’s permit page and you will have what you need.

1. Is a permit required, and for what? Grand Canyon’s page is a good model because it lists both sides. A permit is required for overnight camping outside its three developed campgrounds, for all sites at Tuweep Campground, for camping anywhere on the North Rim between October 16 and May 14, and for off-river camping by river trip participants. It is not required for day hikes, including nighttime “day” hikes, or for staying at the developed rim campgrounds, which are booked as campground reservations instead.

2. Is there a quota, and on what? Yosemite limits wilderness permits per trailhead, per day, because the Wilderness Act calls for outstanding opportunities for solitude. The quota is published per trailhead on the park’s trailhead information pages. We have not verified any individual trailhead’s number and are not going to print one; look up the trailhead you actually want.

3. Advance lottery or first-come? Most busy parks run some form of advance release plus a held-back remainder.

• Yosemite splits each trailhead’s daily quota: 60 percent becomes available by lottery 24 weeks in advance, and the remaining 40 percent opens seven days in advance. Reservations are required from late April through October.
• Yellowstone runs an Early Access Lottery with applications from March 1 to 20, and winners receive a randomized booking access time between April 1 and 24. About 75 percent of its backcountry campsites are available for reservation. General access reservations must be made at least three days before the trip start date.

Note that Yellowstone’s lottery application asks only for basic contact information, not an itinerary. You are entering for a booking slot, not for a specific trip.

4. What are the walk-up odds, honestly? This is where parks differ most, and both of these are the parks’ own words.

Yellowstone: walk-up permits are issued first-come, first-served up to two days before a trip start date, available in person during summer, and the park describes them as a good option for people with flexible dates because its backcountry rarely reaches full capacity.

Yosemite: “Do not arrive at Yosemite expecting to get a walk-up wilderness permit.” Unreserved permits are released in person on the trip start date, but the park says few, if any, unused permits will be available in peak season. Wilderness centers run 8 a.m. to 5 p.m. and there are no after-hours permits, so a late arrival is a wasted day. In winter, most Yosemite trailheads do not fill, and you can get a permit the day before or the day of your hike.

5. How do you physically get the permit? Booking is not possession. Yellowstone reservation holders pick up the permit at a backcountry office up to two days before the trip in summer. Grand Canyon requires you to carry the printed permit and, once camp is set, attach it to a pack, tent, or other equipment in plain view for rangers to check. Grand Canyon permits are valid only for the named trip leader, the itinerary, the number of people, and the dates on the permit, and must be obtained before you start hiking.

Food storage is usually a permit condition

Expect a food storage requirement, and expect it to be specific. 36 CFR 2.10(d) allows a park to require food, garbage, and cooking equipment to be sealed in a vehicle, kept in a camping unit built of solid non-pliable material, suspended at least 10 feet above the ground and 4 feet horizontally from a post or tree trunk, or “stored as otherwise designated.”

Parks use that last clause hard, in both directions:

• Yosemite states that hanging food is illegal throughout the park. You need an approved bear-resistant container or one of the limited food lockers, and the container goes on the ground 25 to 50 feet from your campsite. Only one canister model is available to rent inside the park, so plan on bringing your own or renting before you arrive.
• Yellowstone’s compendium allows bear-resistant containers, hanging, or an NPS food hanging pole, and adds its own conditions: in a designated backcountry campsite the container stays within the core camp area, and when camping undesignated it must be stored 100 yards from any sleeping area.

Scented items count. Yosemite’s list includes sunscreen, soap, insect repellent, lip balm, deodorant, and medications, not just food.

Closures move inside the permit season

A permit does not mean the route is open. Yellowstone’s compendium sets Bear Management Areas with their own calendars: some closed entirely for months, some open to day use only within set hours, some open to camping for a capped number of nights at two named sites. Those dates sit inside the normal permit season, and the permit office applies them when they build your itinerary.

Check the park’s current conditions page before you finalize a route, and read what the ranger writes on the permit. If a posted closure or a ranger’s instruction differs from anything here or from a park web page you read last month, the posting and the ranger are current and this page is not.

For what is allowed once you are camped, see national park camping rules. If the permit does not come through, the surrounding national forest often allows dispersed camping with no permit at all: that is covered in camping near a national park.