Pick a site on the map to see its availability calendar.
Only 11 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 1,281 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 645 open for online reservation · 629 reserved · 7 unavailable (cause unspecified).
Of the open site-nights on mapped sites, 425 fall on weekdays and 220 on weekends (Fri–Sun).
January holds the most room. 164 of 217 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 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 1 | Open | |
| Christmas | THU Dec 24 | 6 | Open |
| FRI Dec 25 | 6 | Open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 3 | Open |
Labor Day: no online availability on any tracked night. Thanksgiving: no site is currently available for the complete three-night stay. Thursday and Friday have no online availability; individual Saturday night remains open. Christmas: 6 sites are available for the complete two-night stay. New Year: no site is currently available for the complete two-night stay. Thursday has no online availability; individual Friday night remains open.
| Site | Open site-nights |
|---|---|
| M | 112 |
| L | 104 |
| O | 101 |
| N | 97 |
| P | 85 |
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. 91 2-night, 80 3-night, 26 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 20 at site L.
RV length. Longest recorded site here is 30 ft. 2 sites take 25 ft.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| M | 26 ft | None | 112 | 31 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4 +100 more |
| L | 30 ft | None | 104 | 26 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +92 more |
| O | 23 ft | None | 101 | 22 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +89 more |
| N | 22 ft | None | 97 | 38 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +85 more |
| P | 24 ft | None | 85 | 21 nights | Sep 18, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +73 more |
| Q | 24 ft | None | 85 | 20 nights | Sep 21, Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +73 more |
| R | 24 ft | None | 61 | 16 nights | Sep 21, Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 7, Oct 14, Oct 15, Oct 18, Oct 19 +49 more |
Chisos Basin Group Campground, situated high in the rugged Chisos Mountains, is one of the most sought-after campgrounds in Big Bend National Park. It has seven group camping sites available for groups of nine to 20 people (size is site-dependent). At an altitude of 5,400 ft. (1646 m),, the campground is surrounded on all sides by tall, rocky cliffs and conveniently located near some of the park's most spectacular and popular trails. The Rio Grande is only a short drive away.
Also found in the area is the Chisos Basin Visitor Center, the General Store and the Chisos Mountains Lodge , which houses the only restaurant in Big Bend National Park.
This campground is a hub for hikers. Some of the park's most spectacular and popular Day Hike trails are nearby, including the Lost Mine Trail, the Window Trail, the South Rim Trail and the Pinnacles Trail, with its access to the park's highest point, Emory Peak (elevation 7,825 ft./2385 m). Campers can find the trailheads for most of these trails in the main Chisos Basin area a mile or so further down the Basin road from the campground.
Access to the river is approximately 30 miles (48 km) away, where visitors can canoe, kayak and fish.
The group campground is located approximately 1/4 mile (.4 km) away from the main Chisos Basin Campground. Each site comes with a picnic table, charcoal grill and bear-proof food storage container and some sites come with picnic shelters for shade. All campsites are within easy walking distance to drinking water and toilets. No RVs, trailers, or generators are allowed. Group Site "O" allows for ONE smaller (up to 20 feet/6 m) recreational vehicle (camper van, pickup camper, or small RV) to camp adjacent to the tent area as part of the larger group. All other sites are exclusively walk-in, tents only.
The national park is named for a curve in the Rio Grande called the "big bend." For 1,250 miles (2012 km), the river is an International Boundary between the United States and Mexico.
The campground lies at the base of several sloping cliffs amidst montane shrubland; desert plants such as Arizona cyprus and mesquite trees fill the landscape. Maple, aspen, pinyon and ponderosa pines grow at higher elevations just above the campground. Though it is lower than the surrounding cliffs, the Chisos Basin is at a higher elevation than other campgrounds within the park. Summer temperatures here are cool, yet warmer than other areas in fall and winter due to the cold air sinking into lower regions.
The Chisos Mountains are a popular nesting site for migratory birds . The mountains provide the only nesting ground in the United States for the Colima Warbler, which arrives in mid-April and departs for its wintering grounds in southwestern Mexico by mid-September.
Big Bend National Park encompasses 801,000 acres (324,153 ha) and the Chisos Basin area is centrally located. This allows visitors an excellent opportunity to explore all areas of the park in a relatively short drive. Big Bend offers excellent hiking trails, miles of rugged dirt roads, and endless possibilities for sightseeing.
From Interstate 10, take highway 385 south to Fort Stockton and then on to Marathon. From Marathon, go 40 miles south on Highway 385 to the north entrance of Big Bend National Park. Drive straight 26 miles (42 km) to Park Headquarters at Panther Junction. Turn right and drive for three miles (1 km). Turn left at the Basin sign and go seven miles (2.1 km) before making a right into the campground road.
View on Recreation.gov ↗ Get directions ↗












Reservations for Chisos Basin Group Campground (Big Bend, TX) are made through Recreation.gov. 645 of 1,281 tracked site-nights are currently open (50.4%). Campsite Sniper has also detected 11 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 14:17 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 9 site-date openings at Chisos Basin Group Campground (Big Bend, TX) in the last 7 days, 11 over 30 days and 11 over the last 90.
80 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 20 at site L. 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.
January 2027, with 164 open site-nights in the current snapshot of 217.
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 Chisos Basin Group Campground (Big Bend, TX). 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.