Pick a site on the map to see its availability calendar.
Only 6 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 319 tracked site-nights (Apr 23 – May 3, 2027): 42 open for online reservation · 2 reserved · 11 on sites not offered for online reservation (first-come, first-served or administrative) · 264 not yet released. Of the facility's 29 monitored sites, 28 can be reserved online and 1 are first-come, first-served.
Of the open site-nights on mapped sites, 20 fall on weekdays and 22 on weekends (Fri–Sun).
April holds the most room. 30 of 232 site-nights are still open there.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Memorial Day | FRI May 28 | 0 | None open |
| SAT May 29 | 0 | None open | |
| SUN May 30 | 0 | None open | |
| MON May 31 | 0 | None open |
Memorial Day: no online availability on any tracked night.
| Site | Open site-nights |
|---|---|
| GRP-B | 11 |
| GRP-C | 11 |
| GRP-D | 11 |
| GRP-A | 9 |
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.
Campsite Sniper's data for this facility starts Apr 23, 2027. That is about 172 days after the current snapshot was taken, so dates before Apr 23, 2027 are not covered by what Campsite Sniper tracks here — they are not known to be unavailable. The site-nights shown on this page describe Apr 23, 2027 onwards only. Check Recreation.gov for earlier dates.
Multi-night stays. 4 2-night, 4 3-night, 4 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Apr 23, 2027 at site GRP-B.
RV length. Longest recorded site here is 40 ft. 21 sites take 25 ft, 7 sites take 35 ft, 1 site takes 40 ft. 4 sites of 29 have no recorded maximum and are not counted.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| GRP-B | Not recorded | None | 11 | 11 nights | Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027, Apr 30, 2027, May 1, 2027, May 2, 2027, May 3, 2027 |
| GRP-C | Not recorded | None | 11 | 11 nights | Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027, Apr 30, 2027, May 1, 2027, May 2, 2027, May 3, 2027 |
| GRP-D | Not recorded | None | 11 | 11 nights | Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027, Apr 30, 2027, May 1, 2027, May 2, 2027, May 3, 2027 |
| GRP-A | Not recorded | None | 9 | 9 nights | Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027, Apr 30, 2027, May 1, 2027, May 2, 2027, May 3, 2027 |
Box Elder Campground is situated next to the town of Mantua and Mantua Reservoir in a pretty mountain valley just 5 miles from Brigham City, Utah. Visitors enjoy boating, fishing and exploring area trails.
Please click here for a corrected map of Box Elder Campground.
Mantua Reservoir is just one mile away, offering fishing, boating, canoeing and swimming. Horseback riding and hiking on local trails are also popular activities.
Box Elder contains four group sites and several single-family sites. Flush toilets and drinking water are provided. Roads and parking spurs are gravel. A first-come, first-served picnic area is located within the campground.
A dense forest of bottomland hardwoods covers the campground, offering plentiful shade in most sites. Box Elder Creek flows gently through the campground.
Bear River Migratory Bird Refuge contains nearly 80,000 acres of marsh, open water, uplands, and alkali mudflats. The marshes and open water are managed using a complex system of dikes and water control structures to provide a variety of water depths suitable for the needs of different waterbird species. The Refuge is an excellent place to observe wildlife along a 12-mile auto tour route, as well as enjoying hunting, fishing and wildlife photography.
From Highway 89/91, travel 4.5 miles east of Brigham City, Utah. Look for highway signing at the town of Mantua.
View on Recreation.gov ↗ Get directions ↗












Reservations for Box Elder Campground are made through Recreation.gov. 86.8% of tracked site-nights are not currently open for online reservation; 42 of 319 remain open. Campsite Sniper has also detected 6 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 Nov 2, 2026 16:20 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 6 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
4 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Apr 23, 2027 at site GRP-B. Confirm and book on Recreation.gov.
7 of the 29 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft. 25 of those 29 sites have a recorded maximum length and 4 do not; they are not counted as fitting.
April 2027, with 30 open site-nights in the current snapshot of 232.
Campsite Sniper cannot answer that from the current snapshot. The availability data held for Box Elder Campground begins Apr 23, 2027 — about 172 days after this snapshot was taken, so any earlier dates are outside what Campsite Sniper is tracking here rather than known to be unavailable. Check Recreation.gov for dates before Apr 23, 2027.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Box Elder Campground. One watch covers every matching online-reservable site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.
Alerts monitor online-reservable inventory only; first-come, first-served sites are not included.