Pick a site on the map to see its availability calendar.
Only 12 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 732 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 339 open for online reservation · 99 reserved · 294 on sites not offered for online reservation (first-come, first-served or administrative).
Of the open site-nights on mapped sites, 218 fall on weekdays and 121 on weekends (Fri–Sun).
December shows no online availability. 0 of 124 tracked site-nights are open there — 124 on sites not offered online.
| 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 | 3 | Open |
| FRI Nov 27 | 3 | Open | |
| SAT Nov 28 | 4 | Open | |
| Christmas | THU Dec 24 | 0 | None open |
| FRI Dec 25 | 0 | None open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 0 | None open |
Labor Day: no online availability on any tracked night. Thanksgiving: 3 sites are available for the complete three-night stay. Christmas: no online availability on any tracked night. New Year: no online availability on any tracked night.
| Site | Open site-nights |
|---|---|
| 7 | 88 |
| Group B | 88 |
| Group C | 83 |
| Group A | 80 |
The 4 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 26; the first open weekend starts Sep 26. Campsite Sniper can watch later dates for you.
Multi-night stays. 31 2-night, 28 3-night, 9 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 26 at site Group B.
RV length. Longest recorded site here is 40 ft. 4 sites take 25 ft, 3 sites take 35 ft, 3 sites take 40 ft.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 7 | 40 ft | None | 88 | 38 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14 +76 more |
| Group B | 40 ft | None | 88 | 38 nights | Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7 +76 more |
| Group C | 25 ft | None | 83 | 38 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 7, Oct 13, Oct 14, Oct 18, Oct 19, Oct 20, Oct 21 +71 more |
| Group A | 40 ft | None | 80 | 38 nights | Sep 28, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7, Oct 13, Oct 14, Oct 18, Oct 19, Oct 20 +68 more |
The Lower Onion Creek Group Sites are located along the banks of the Colorado River. The sites are ideal for small family or group gatherings of 15-30 people (parking is limited and can accomodate only one large RV or truck w/trailer). Lower Onion is also a launch site for river trips. Within close proximity to national parks and open space, outdoor enthusiasts will enjoy hiking, mountain biking, whitewater rafting and four-wheel drive tours in the surrounding area. The town of Moab is approximately 40 minutes away and has dining, shopping, sports rentals, tour companies and museums.
This location is close to hiking, mountain biking and four-wheel driving opportunities and is a launch site for river running on the Colorado River.
Group sites have fire grates, picnic tables, vault toilets and shade shelters. The group sites do not have water, dump stations or electric hook-ups. A boat ramp is in the campground and near the group sites.
The group sites are located along the Colorado River offering spectacular view of the red rock canyons, buttes, mesas and spires against the backdrop of the nearby La Sal Mountains. A dry creek runs along the back of Group Site A (watch for flash-flooding)!
There are many hiking, mountain biking and four-wheel drive trails along Hwy. 128. The Fisher Towers area offers hiking, rock climbing and scenic vistas. Lower Onion Creek is about 40 minutes from Arches National Park and one hour from Canyonlands National Park.
From Moab drive north to the junction with Highway 128. Drive 22 miles on Highway 128 to the entrance to Lower Onion Creek campground, then 1.5 miles north on the gravel road. The group sites are located on the southwest side of the campground.
View on Recreation.gov ↗ Get directions ↗










Reservations for Lower Onion Creek Group Sites are made through Recreation.gov. 339 of 732 tracked site-nights are currently open (46.3%). Campsite Sniper has also detected 12 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 11:17 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 2 site-date openings at Lower Onion Creek Group Sites in the last 7 days, 10 over 30 days and 12 over the last 90.
28 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 26 at site Group B. Confirm and book on Recreation.gov.
3 of the 4 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft.
November 2026, with 107 open site-nights in the current snapshot of 120.
As of the Sep 18, 2026 snapshot: the next open date is Sat, Sep 26 and the next open weekend starts Sat, Sep 26. 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 Lower Onion Creek Group Sites. 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.