Recreation.gov for national park trips: when campsites open, how lotteries work, and what to book first

On a fly-in RV trip, the campsites decide the dates, not the other way round. Almost every campground inside the parks on our routes is booked through Recreation.gov, the US government's booking site for campgrounds, permits and timed entry. The same site runs the Angels Landing lottery and Rocky Mountain's entry reservations. This guide explains how it works, when each thing opens, and which bookings you can safely leave until later. Every rule below has a source and a check date.

How Recreation.gov works

Recreation.gov is a booking platform, not the park. The National Park Service and other agencies set the rules for each campground or permit: the season, the booking window, the length limits and the cancellation terms. Recreation.gov only sells the reservations [S2]. That's why two campgrounds in the same park can open on different days.

• Campgrounds (Watchman, Mather, Devils Garden…): you book a specific site for specific nights. Most open on a rolling window: each morning, one more day six months out becomes bookable [S1][S2].
• Timed entry (Rocky Mountain in 2026): a free ticket for a time slot, plus a $2 processing fee. These open in monthly blocks, with a second release the evening before [S16].
• Lotteries (Angels Landing): you apply in a window, then a random draw decides. Applying early gives you no advantage [S10].
• Short-notice permits (Fiery Furnace in Arches): bookable only a few days ahead [S6].
• First-come, first-served sites and Scan & Pay: some campgrounds or loops can't be reserved at all. At some of them you pay on site with the Recreation.gov app [S4][S7].

When things open on our routes

Times are the park's local time unless stated. "6 months" means a rolling window: the date six months before your arrival, at the release time [S1].

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Rules change every season. These are the 2026 rules as published on 2026-10-27. Before you book for 2027, open the campground's "Seasons & Booking" tab on Recreation.gov [S2].

Work out your opening date

Want the whole route at once, with lotteries and a calendar file? Booking timeline →

Enter the first night you want at a campground. You get the day its window opens, for the two windows used on our routes: 6 months (Watchman, North Campground, Mather, Devils Garden, Fruita, Grand Teton, Yellowstone, Rocky Mountain) and 14 days (Zion South, Bryce Sunset, Lava Point) [S9][S11][S18]. The release time is shown in your own time zone, assuming the usual 10 am Eastern [S1].

What to book early, and what can wait

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Private RV parks outside the parks (Las Vegas, Moab, Springdale, Jackson, West Yellowstone) don't use Recreation.gov. They are the easiest nights to fill, so book them last [A].

Will your RV fit? Length limits by campground

Know your length? See which campgrounds on your route have sites long enough →

Roads and parking have limits too (Zion tunnel road, Bryce, Grand Canyon): RV size limits, route by route.

Rental Class C motorhomes are often somewhere around 22 to 31 ft, campervans around 19 to 21 ft [A — check the exact length of the model you are quoted]. Campgrounds count the whole unit: motorhome plus anything towed, bumper to bumper [S21][S23]. Two things to check before you pay:

1. The campground limit (table below), then
2. the site itself. Each site page on Recreation.gov lists a "Max Vehicle Length" under Permitted Equipment, and many sites are shorter than the campground maximum. At Devils Garden, for example, one site takes 40 ft and another only 30 ft [S24]. Mather says only five sites (120, 121, 128, 172, 185) fit a 30 ft trailer [S21].

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Roads matter as much as sites. From June 7, 2026, Zion enforces limits on the Zion–Mount Carmel Highway: vehicles over 35'9" long, 11'4" tall or 7'10" wide can't use it and must come and go via the South Entrance in Springdale [S18]. At Bryce Canyon, vehicles over 23 ft can't park in the Bryce Amphitheater during shuttle hours [S22]. Route detail: Las Vegas day-by-day.

Booking before you have an RV? Reserve a site long enough for the biggest vehicle you might rent, and write down each site's limit. Then only accept RV quotes that fit [A].

Booking day, step by step

1. Make the account weeks before. Check your password and contact details. Save a payment card in the digital wallet so checkout is one click [S1].
2. Work out the opening date. Count six months back from your arrival night and put the release time in your calendar, converted to your time zone [S1]. Example: for an arrival at Watchman on May 12, 2027, the date to watch is November 12, 2026 [A — confirm on the campground's Seasons & Booking tab].
3. Know your vehicle length. Campgrounds filter by length, and some sites are too short for a Class C. At Watchman, loops C and D take no vehicles of 19 ft or more [S9]. Needles sites max out at 28 ft [S7], Mather at 30 ft [S12]. No RV yet? Book a site long enough for the largest vehicle you would rent [A].
4. Be on the page early. Sync to the Recreation.gov clock and refresh at the release time. Use one tab in one browser; several logged-in tabs can trigger extra reCAPTCHA checks that slow you down [S1].
5. Add to cart, then pay within 15 minutes. After that the site goes back to the pool [S1]. If no single site is free for every night, you can string several sites together [S1].
6. Missed it? Set an availability alert for your dates. It emails everyone with the same alert, so act fast [S1]. Many campgrounds also list cancelled sites again, sometimes the same day (Fruita, for example) [S8].

Lotteries vs. first-come: Angels Landing as the example

A lottery replaces the race at 10 am with a random draw. Zion's Angels Landing permit works like this [S10]:

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• You rank up to seven days and times. One $6 application covers up to six people; winners pay $3 per person [S10].
• Day-before lottery: apply between 12:01 am and 3 pm MT the day before you hike; results come after 4 pm. Day-before permits can't be changed or refunded [S10].
• No permit? You can still hike to Scout Lookout, about 2.25 miles each way [S10].

Cancellations and changes

• Cancel before the cut-off: refund minus a $10 service fee [S3].
• Late cancellation (individual campsites: the day before or the day of arrival): $10 plus the first night's fee. A one-night booking is not refunded at all [S3].
• Changing dates: $10 if the new dates are entirely outside the old ones. Extending or shortening a stay that keeps at least one original night is free, and so is switching to a same-price site in the same campground for the same dates [S3].
• Booked at the very end of the window? Those dates can't be changed until 18 days after you booked [S3].
• Facilities can set their own terms, so read the policy on the campground page before you pay [S2][S3].

What this means in practice: holding a campsite while your flights and RV are not yet booked usually costs $10 if you cancel in time [S3]. Please do cancel as soon as you know you won't go. Someone else is waiting for that site [S1].

Missed it? A cancellation-watch plan

Sold out on opening day is not the end. People cancel, and at Rocky Mountain a cancelled site "immediately becomes available again" on Recreation.gov [S23]. At Fruita, cancelled reservations can be booked "even same day" [S8]. Here is the order we would work through [A]:

1. Change the shape of the stay. Recreation.gov suggests avoiding Friday and Saturday nights, for example Sunday to Thursday [S1]. Split the stay over two sites if no single site is free for every night [S1].
2. Set Recreation.gov's own availability alert for your dates. It's free, but it goes to everyone watching the same dates, so it's no guarantee [S1].
3. Calendar the short windows. Zion South opens 14 days ahead, and you can book up to two days past that window [S19]. Bryce Sunset is also 14 days [S22]. Rocky Mountain releases some sites on a short-term basis [S23].
4. Know the same-day options. Mather sells first-come sites in person each morning (NPS: 15 sites from 8 am; the Recreation.gov page says about 20, usually gone by 11 am) [S20][S21]. Devils Garden is first-come November–February, Willow Flat and Needles Loop A are first-come all season [S4][S7].
5. Consider a paid or third-party alert service (below), and keep checking yourself.
6. Have a plan B night in a private RV park, a national forest campground, or on legal dispersed land (next section).

Third-party alert services

These sites watch Recreation.gov for openings and message you. They don't book for you; you still book on Recreation.gov yourself. We haven't tested them and have no deal with any of them; the descriptions come from their own pages [S26][S27][S28].

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On bots: Recreation.gov says it has defences against bots and has seen no large-scale abuse, though some single reservations may be helped by scripts [S2]. Alerts are fine. We would not use anything that books or holds sites automatically: one account, one tab, your own click [S1] [A].

RV-specific rules that catch people out

• Book the vehicle you'll actually drive. Yellowstone's lodge-run campgrounds won't accommodate you if you arrive with different equipment from what you reserved, and sites for 40 ft or more are limited [S14].
• No RV deliveries inside Yellowstone. Rental RVs may not be delivered to or picked up from campsites in the park [S13].
• Hookups are rare. Devils Garden has no hookups and no dump station [S4]. In Yellowstone, Fishing Bridge RV Park is the only campground with water, sewer and electric hookups, for hard-sided RVs only [S13].
• Generator hours are set per campground. At Devils Garden: 8–10 am and 4–8 pm [S4].
• Zion vehicle limits decide your route east to Bryce Canyon, not your campsite. Details in our Las Vegas day-by-day.

Plan B: BLM, national forest and dispersed camping

Sold out? The full plan B guide: park by park, with stay limits and RV lengths →

Around most of these parks there is public land run by the Bureau of Land Management (BLM) or the US Forest Service. Dispersed camping means camping there outside a developed campground. It's usually free, but there's no water, no toilets, no dump station and no host [S29][S33]. It can save a night. For a first fly-in trip in a rental, though, we see it as a back-up, not the plan [A].

The rules that apply almost everywhere

• Stay limits: BLM land is generally 14 days in any 28-day period, then move on, often 25–30 miles [S29]. Colorado BLM: 14 days in 30, then 30 air miles [S30]. Kaibab National Forest: 14 days in 30 [S33].
• Stay on designated roads. Don't drive off-road to find a spot [S29]. On the Kaibab's Tusayan district, you may park up to 30 ft from an open road, unless signs say otherwise [S33].
• Use existing sites, keep 200 ft from water, and don't camp within a mile of campgrounds, trailheads or picnic areas [S29]. Kaibab: no camping within 1 mile of developed sites such as Ten X [S33].
• Pack out everything, including human waste where required. Around Moab a portable toilet or waste bag is mandatory for dispersed camping [S35].
• Check fire restrictions before you go; they change during the season [S29].

Hard limits: where you can't just park and sleep

• Inside national parks, outside campgrounds: no. Yellowstone and Grand Teton ban car camping and overnight parking in pullouts, parking areas and picnic grounds [S13][S15]. Bryce Canyon: no camping along the roadside or in pull-offs [S22].
• Your rental contract may ban unpaved roads, and many dispersed areas are on dirt roads that can become impassable when wet [S31] [A — read your contract].
• Heat, flash floods and no signal. The BLM warns that Long Canyon near Moab "is subject to extreme flooding" [S35]. Carry water for every night and know where you are without a phone signal [A].

Near each park

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The booking order we use for a fly-in RV trip

1. Pick a date range with a few days of slack [A].
2. Find the one campground that limits you most (Watchman, Mather, Devils Garden, Fruita, or Yellowstone in summer) and note the day its window opens [A].
3. Book that campground, then the others, in the order they open [A].
4. Then book the RV for exactly those dates, and check its length, height and width against the sites you booked [A].
5. Then flights, then private RV parks for the first and last night [A].
6. Calendar the short-notice items: lottery dates, 14-day campgrounds, Fiery Furnace [A].

Step 4 in practice: compare the RV's total length with the campground and site limits you booked, before you pay a deposit [A].

Flying in from outside the US? Do the licence, age and deposit checks before step 4: renting an RV from abroad.

Route by route

• Day-by-day: Las Vegas → Zion, Bryce & Grand Canyon (10 days): Watchman, North Campground, Mather.
• Day-by-day: Salt Lake City → Arches & Canyonlands (7 days): Devils Garden, the Needles, Fruita.
• Day-by-day: Yellowstone & Grand Teton from Salt Lake City (10 days): Gros Ventre, Grant Village, Madison, Canyon, Mammoth.
• Day-by-day: Denver → Rocky Mountain (6 days): Moraine Park or Glacier Basin, then Timber Creek; timed entry included.
• Day-by-day: Phoenix → Sedona & Grand Canyon (7 days): Dead Horse Ranch, Mather (dry camping in 2026).

Campsite tables for each route

Every route guide now has a short table with the campgrounds on that route, when each opens, and its length limit:

• Las Vegas → Zion, Bryce & Grand Canyon, including Watchman vs. South
• Phoenix → Grand Canyon
• Salt Lake City → Arches & Canyonlands
• Yellowstone & Grand Teton
• Denver → Rocky Mountain

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