Pick a site on the map to see its availability calendar.
Tuesday accounted for the largest share of the openings Campsite Sniper detected. 335 of 1,448 openings detected in the last 90 days occurred on a Tuesday (23.1%), with Wednesday (239) and Monday (232) next in line.
The largest concentrations of detected openings were first detected during the 17:00 and 21:00 local-time hours. Those hours contained 282 of 1,448 detected openings (19.5%). Hours show when Campsite Sniper first detected each opening, in Mountain Standard Time (Arizona), not when the change was made upstream.
Half of the openings Campsite Sniper detected appeared at least 22 days before the stay date; the middle 50% land 10–35 days out. Set an alert if you want Campsite Sniper to monitor future openings.
| Site | Openings | Share of all openings |
|---|---|---|
| 287 | 20 | 1.4% |
| 019 | 16 | 1.1% |
| 181 | 16 | 1.1% |
| 030 | 15 | 1.0% |
| 005 | 14 | 1.0% |
Site 287 had the most detected openings in the last 90 days: 20. One free watch covers every site here.
Of the 52,704 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 23,101 open for online reservation · 8,460 reserved · 21,143 closed.
Of the open site-nights on mapped sites, 13,506 fall on weekdays and 9,221 on weekends (Fri–Sun). The split covers the 22,727 open site-nights on mapped sites; 23,101 site-nights are open across all monitored inventory.
November holds the most room. 7,555 of 8,640 site-nights are still open there.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open | |
| Thanksgiving | THU Nov 26 | 224 | Open |
| FRI Nov 27 | 226 | Open | |
| SAT Nov 28 | 238 | Open | |
| Christmas | THU Dec 24 | 43 | Open |
| FRI Dec 25 | 43 | Open | |
| New Year | THU Dec 31 | 47 | Open |
| FRI Jan 1 | 46 | Open |
Labor Day: no online availability on any tracked night. Thanksgiving: 201 sites are available for the complete three-night stay. Christmas: 42 sites are available for the complete two-night stay. New Year: 45 sites are available for the complete two-night stay.
| Site | Open site-nights |
|---|---|
| 313 | 175 |
| 287 | 169 |
| 308 | 167 |
| HA | 166 |
| 299 | 164 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
The next bookable night is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Multi-night stays. 1,673 2-night, 1,321 3-night, 764 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 154.
RV length. Longest recorded site here is 30 ft. 85 sites take 25 ft. 20 sites of 285 have no recorded maximum and are not counted.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 313 | 19 ft | None | 175 | 146 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +163 more |
| 287 | 21 ft | None | 169 | 132 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5 +157 more |
| 308 | 19 ft | None | 167 | 115 nights | Sep 19, Sep 23, Sep 24, Sep 25, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +155 more |
| HA | 30 ft | None | 166 | 127 nights | Sep 18, Sep 20, Sep 21, Sep 22, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6 +154 more |
| 299 | 19 ft | None | 164 | 113 nights | Sep 18, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Oct 3, Oct 4, Oct 7, Oct 8, Oct 13 +152 more |
| 310 | 19 ft | None | 164 | 141 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 9, Oct 12, Oct 13 +152 more |
| 312 | 19 ft | None | 164 | 140 nights | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 26, Sep 27, Sep 28, Oct 5, Oct 6, Oct 7, Oct 11 +152 more |
| 004 | Not recorded | None | 162 | 132 nights | Sep 20, Sep 21, Sep 22, Sep 25, Sep 26, Sep 30, Oct 1, Oct 2, Oct 6, Oct 7, Oct 13, Oct 14 +150 more |
| 266A | Not recorded | None | 162 | 107 nights | Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Oct 1, Oct 6, Oct 13, Oct 14, Oct 15 +150 more |
| 297 | 19 ft | None | 162 | 120 nights | Sep 18, Sep 21, Sep 23, Sep 24, Sep 27, Sep 29, Sep 30, Oct 1, Oct 6, Oct 7, Oct 14, Oct 15 +150 more |
| 314 | 19 ft | None | 161 | 115 nights | Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5, Oct 6, Oct 9 +149 more |
| 300 | 19 ft | None | 160 | 89 nights | Sep 20, Sep 23, Sep 24, Sep 28, Sep 29, Sep 30, Oct 1, Oct 7, Oct 8, Oct 17, Oct 18, Oct 19 +148 more |
| 289 | 21 ft | None | 159 | 146 nights | Sep 20, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 3, Oct 4, Oct 5, Oct 6, Oct 12, Oct 13 +147 more |
| 315 | 19 ft | None | 159 | 97 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 25, Sep 27, Sep 28, Oct 4, Oct 11, Oct 18, Oct 19 +147 more |
| 003 | Not recorded | None | 158 | 125 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 6 +146 more |
| 272 | Not recorded | None | 157 | 99 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14, Oct 15, Oct 16 +145 more |
| 284 | 21 ft | None | 157 | 75 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Oct 2, Oct 7, Oct 8 +145 more |
| 301 | 21 ft | None | 157 | 116 nights | Sep 23, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 12, Oct 13, Oct 14, Oct 15, Oct 19, Oct 20 +145 more |
| 309 | 19 ft | None | 157 | 112 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 28, Oct 8, Oct 14, Oct 15, Oct 21, Oct 22, Oct 23, Oct 24 +145 more |
| 311 | 19 ft | None | 157 | 148 nights | Sep 21, Sep 22, Sep 23, Sep 29, Sep 30, Oct 1, Oct 2, Oct 7, Oct 18, Oct 23, Oct 24, Oct 25 +145 more |
| HB | 30 ft | None | 156 | 81 nights | Sep 18, Sep 19, Sep 20, Sep 23, Sep 24, Sep 25, Sep 26, Oct 5, Oct 6, Oct 7, Oct 10, Oct 14 +144 more |
| 005 | Not recorded | None | 155 | 120 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +143 more |
| 276 | 21 ft | None | 155 | 143 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 26, Sep 29, Oct 1, Oct 4, Oct 5, Oct 9, Oct 13, Oct 26 +143 more |
| 295 | 21 ft | None | 155 | 146 nights | Sep 20, Sep 21, Sep 24, Sep 29, Sep 30, Oct 1, Oct 17, Oct 18, Oct 19, Oct 25, Oct 26, Oct 27 +143 more |
| 302 | 21 ft | None | 155 | 113 nights | Sep 20, Sep 21, Sep 22, Sep 24, Oct 1, Oct 4, Oct 13, Oct 17, Oct 18, Oct 19, Oct 20, Oct 21 +143 more |
| 274 | Not recorded | None | 154 | 117 nights | Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 7, Oct 8, Oct 11, Oct 18, Oct 19 +142 more |
| 281 | 21 ft | None | 154 | 117 nights | Sep 21, Sep 27, Oct 2, Oct 6, Oct 12, Oct 13, Oct 14, Oct 15, Oct 18, Oct 19, Oct 21, Oct 22 +142 more |
| 002 | Not recorded | None | 153 | 97 nights | Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +141 more |
| 282 | 21 ft | None | 153 | 53 nights | Sep 21, Sep 22, Oct 1, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 12, Oct 14, Oct 17 +141 more |
| 266B | 21 ft | None | 152 | 78 nights | Sep 18, Sep 20, Sep 23, Oct 7, Oct 8, Oct 13, Oct 16, Oct 17, Oct 19, Oct 20, Oct 21, Oct 22 +140 more |
| 001 | Not recorded | None | 151 | 119 nights | Sep 20, Sep 21, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +139 more |
| 006 | Not recorded | None | 150 | 113 nights | Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 20 +138 more |
| 270 | Not recorded | None | 150 | 114 nights | Sep 22, Sep 28, Sep 29, Oct 1, Oct 3, Oct 4, Oct 5, Oct 9, Oct 13, Oct 14, Oct 25, Oct 26 +138 more |
| 304 | 21 ft | None | 150 | 59 nights | Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 8, Oct 18, Oct 19, Oct 20, Oct 21, Oct 22 +138 more |
| 268 | Not recorded | None | 149 | 77 nights | Sep 24, Sep 27, Oct 5, Oct 9, Oct 11, Oct 13, Oct 14, Oct 17, Oct 18, Oct 19, Oct 20, Oct 21 +137 more |
| 279 | 21 ft | None | 149 | 112 nights | Sep 20, Sep 21, Sep 22, Sep 23, Oct 15, Oct 18, Oct 19, Oct 20, Oct 21, Oct 22, Oct 25, Oct 26 +137 more |
| 007 | Not recorded | None | 148 | 70 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 24, Sep 26, Sep 27, Oct 5, Oct 6, Oct 18, Oct 19 +136 more |
| A278 | 25 ft | None | 148 | 71 nights | Sep 21, Sep 27, Oct 1, Oct 2, Oct 3, Oct 4, Oct 15, Oct 18, Oct 19, Oct 20, Oct 23, Oct 24 +136 more |
| 277 | 21 ft | None | 147 | 65 nights | Sep 26, Sep 28, Sep 29, Oct 3, Oct 4, Oct 13, Oct 19, Oct 21, Oct 22, Oct 23, Oct 24, Oct 25 +135 more |
| 288 | 25 ft | None | 147 | 112 nights | Sep 22, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 13, Oct 14, Oct 15, Oct 17, Oct 20, Oct 25 +135 more |
| 286 | 21 ft | None | 146 | 112 nights | Sep 20, Sep 21, Sep 24, Oct 4, Oct 5, Oct 6, Oct 14, Oct 15, Oct 18, Oct 19, Oct 25, Oct 26 +134 more |
| 317 | 21 ft | None | 146 | 38 nights | Sep 18, Sep 22, Sep 23, Sep 24, Sep 25, Sep 29, Oct 1, Oct 5, Oct 12, Oct 19, Oct 20, Oct 21 +134 more |
| 290 | 21 ft | None | 142 | 88 nights | Sep 22, Sep 24, Oct 12, Oct 13, Oct 21, Oct 22, Oct 25, Oct 26, Oct 27, Nov 1, Nov 2, Nov 3 +130 more |
| 307 | 23 ft | None | 142 | 58 nights | Sep 18, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 29, Oct 2, Oct 4, Oct 5, Oct 8, Oct 16 +130 more |
| 285 | 21 ft | None | 134 | 80 nights | Oct 14, Oct 16, Oct 21, Oct 22, Oct 23, Oct 25, Oct 26, Oct 29, Oct 30, Oct 31, Nov 3, Nov 4 +122 more |
| 296 | 23 ft | None | 134 | 41 nights | Sep 25, Oct 6, Oct 14, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30, Oct 31, Nov 1, Nov 2 +122 more |
| 293 | 21 ft | None | 132 | 65 nights | Sep 21, Sep 22, Oct 8, Oct 14, Oct 15, Oct 18, Oct 23, Oct 30, Nov 5, Nov 6, Nov 7, Nov 8 +120 more |
| 283 | 21 ft | None | 131 | 40 nights | Sep 22, Sep 30, Oct 14, Oct 19, Oct 26, Oct 29, Nov 1, Nov 2, Nov 3, Nov 4, Nov 5, Nov 8 +119 more |
| 292 | 21 ft | None | 117 | 34 nights | Sep 21, Sep 22, Sep 23, Sep 24, Oct 8, Oct 22, Oct 27, Oct 31, Nov 1, Nov 2, Nov 4, Nov 5 +105 more |
| 306 | 25 ft | None | 109 | 26 nights | Sep 24, Oct 14, Oct 15, Oct 20, Oct 22, Oct 31, Nov 1, Nov 2, Nov 3, Nov 7, Nov 8, Nov 9 +97 more |
| 291 | 25 ft | None | 94 | 24 nights | Oct 14, Oct 20, Oct 21, Oct 22, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30, Oct 31, Nov 1 +82 more |
| 294 | 21 ft | None | 94 | 20 nights | Sep 20, Sep 23, Sep 27, Oct 1, Oct 8, Nov 5, Nov 6, Nov 12, Nov 20, Dec 1, Dec 8, Dec 9 +82 more |
| 154 | 21 ft | None | 90 | 50 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +78 more |
| 166 | Not recorded | None | 89 | 51 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 27, Sep 29, Sep 30, Oct 1 +77 more |
| 176 | 15 ft | None | 89 | 50 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +77 more |
| 167 | 21 ft | None | 88 | 51 nights | Sep 18, Sep 19, Sep 20, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +76 more |
| 212 | 21 ft | None | 88 | 50 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +76 more |
| 165 | 21 ft | None | 87 | 44 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +75 more |
| 102 | 20 ft | None | 86 | 50 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +74 more |
| 186 | 22 ft | None | 86 | 44 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +74 more |
Due to high demand, Mather Campground recommends reservations during peak season: March 1- November 30. You may book reservations up to 6 months in advance.
Mather Campground is on the South Rim of Grand Canyon National Park in Arizona. Grand Canyon is one of the most inspiring landscapes on Earth and draws over five million visitors per year to its spectacular scenery.
Mather Campground is large and can accommodate a variety of needs and comfort levels. It is the only campground within Grand Canyon Village. Scenic overlooks, the park's free shuttle bus system, the Visitor Center, the general store and hiking and biking trails are all within a few miles of the campground..
The campground is at an elevation of approximately 7,000 ft. (2134 m). Summers are sunny with high temperatures generally in the 80s. Thunderstorms frequently occur in July, August, and early September. Fall and spring are mostly sunny and cool with occasional snow. Visitors should come prepared for changes in weather.
From the campground, campers can access the Greenway, a paved walking and biking trail that leads to scenic overlooks and the Visitor Center. The Rim Trail, a paved walking trail, is one mile away and follows the edge of the canyon for 14 miles (23 km). Leashed pets are allowed on both trails, but are not permitted below the rim.
Bright Angel and South Kaibab trails descend into the canyon from the South Rim (trailheads are a short shuttle bus ride from the campground) and other Day Hiking trails are available. The park's concessionaire also offers day and overnight mule trips into the canyon and along the rim.
**Visitors are responsible for verifying that their vehicle(s) will fit within the size restrictions listed for the site they are reserving. Visitors are also responsible for reviewing the site map and site information to ensure that the doors of their vehicle(s) will open on the desired side. Vehicles must be parked on the pavement and facing the one-way direction of the campground loop. **
The NPS strongly recommends advanced reservations for Mather Campground during peak season, March 1- November 30. Reservations can be made on Recreation.gov six months in advance.
Mather Campground is the largest campground in the NPS system, with 327 campsites, including 7 large group sites and 2 equine sites. Each standard site (1-6 people) includes a campfire ring with a cooking grate, picnic table, parking space, room for up to three tents, and up to two standard vehicles. Group sites accommodate groups of 7-50 people, and three standard vehicles.
Visitors without camping reservations may NOT take unoccupied sites. Sites must be purchased in advance on Recreation.gov, or in-person with NPS Rangers at the campground kiosk. Unoccupied sites may not be first-come, first-served, nor otherwise available. These sites may have reservations, but the campers may not have arrived yet.
All visitors must check-in at the kiosk upon arrival. If arriving after-hours, you can check-in with volunteer hosts, or follow the instructions posted on the kiosk window. If arriving after 8:30pm, please check-in at the kiosk the next morning.
During peak season, Mather Campground has approximately 20 first-come first-served campsites available for purchase day-of, in-person, for one night at a time. Check availability in person with NPS Rangers during kiosk open hours. During peak season, these sites usually sell out by 11:00am.
There are flush toilets and drinking water spigots throughout the campground. Mather Campground does NOT have hookups available but there is a free dump station nearby at Camper Services.
During peak season, generators are NOT permitted in Pine Loop (sites 265-319). Throughout the rest of the campground, generator-use is ONLY allowed from 7:00am to 9:00am, and from 6:00pm to 8:00pm . Generators may be used in Pine Loop during winter operations, only during generator hours. Noise violations should be reported to on-duty NPS Rangers, volunteer campground hosts, or (after-hours) to GRCA non-emergency dispatch.
All visitors are responsible for knowing the campground rules and regulations , which are listed on the Mather Campground Bulletin (emailed to you at time of reservation, available on the NPS GRCA website, available on Recreation.gov (see Additional Info Links tab), and available at the campground kiosk on the back of the site map handout). Failure to follow the rules and regulations may constitute a violation of your permit.
Mather Campground lies beneath a tall canopy of Ponderosa pine, Pinyon, and Juniper trees that provide most campsites with ample shade. The campground is one mile (1.6 km) from the rim of the canyon. A visit to the canyon during sunrise or sunset yields spectacular views of yellow, orange, red and violet hues on the canyon walls. Layers of rock display billions of years of geology.
Campers can take a short shuttle bus ride from the campground to the Visitor Center. Visitors can also visit Yavapai Geology Museum, where they learn about the forces that formed the canyon. Below, visitors can see the mighty Colorado River, which flows 277 miles (446 km) through the bottom of the canyon.
Wildlife abounds on the South Rim, including elk, mule deer, coyotes, lizards, songbirds and the endangered California condor. Although condors nest below the rim, they can be seen soaring several thousand feet above the canyon in search for carrion.
Numerous visitor centers, restaurants, museums and shops are within a shuttle bus ride from the campground. Beyond the village, Desert View provides one of the widest views of Grand Canyon and the Painted Desert. The Desert View Watchtower displays the talent of architect Mary Jane Colter. Tusayan Pueblo Museum provides glimpses into the life of a small Ancestral Puebloan village 800 years ago. Both are within 25 miles (40 km) from the campground.
Address : 1 Mather Campground Road, Grand Canyon, AZ 86023. Mather Campground is located within the park in Grand Canyon Village on the South Rim. From the south entrance station: proceed for about three miles (5 km) and turn left on Center Road. Travel 1/4 mile (.4 km) and turn right onto Market Plaza Road. The campground is about one mile (1.6 km) down Market Plaza Road on the right (Mather Campground Road). From the east entrance station: follow the road 25 miles (40 km) and turn left at the "T" intersection onto South Entrance Road. Travel about 1/2 mile (.8 km) and turn right at the intersection onto Center Road. Travel 1/4 mile (.4 km) and turn right onto Market Plaza Road. The campground is about one mile (1.6 km) down Market Plaza Road on the right (Mather Campground Road). .
View on Recreation.gov ↗ Get directions ↗












Reservations for Mather Campground are made through Recreation.gov. 23,101 of 52,704 tracked site-nights are currently open (43.8%). Campsite Sniper has also detected 1,448 site openings here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 16:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
Campsite Sniper detected 549 site-date openings at Mather Campground in the last 7 days, 1,368 over 30 days and 1,448 over the last 90.
Tuesday accounted for the largest share of the openings Campsite Sniper detected in the last 90 days: 335 of 1,448 (23.1%). Days reflect when Campsite Sniper first detected each opening, not when the change occurred upstream.
1,321 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 18 at site 154. Confirm and book on Recreation.gov.
No RV-analyzable site here has a recorded maximum of 35 ft or more; the longest recorded is 30 ft. 265 of those 285 sites have a recorded maximum length and 20 do not; they are not counted as fitting.
November 2026, with 7,555 open site-nights in the current snapshot of 8,640.
Half of the openings Campsite Sniper detected appeared at least 22 days before the stay date; the middle 50% landed 10-35 days out. Campsite Sniper can monitor future changes for dates you select.
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 18 and the next open weekend starts Fri, Sep 18. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Mather Campground. One watch covers every matching site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.