Openings · last 7 days
0
01 · Detected Opening History · the openings record · file CS-273377
When Mammoth Cabin reopens
Mammoth Cabin's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
6
Openings · last 90 days
6
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.
02 · Availability Outlook · Sep 18 – Sep 30, 2026 · of 2 monitored sites
Of the 26 tracked site-nights (Sep 18 – Sep 30, 2026): 5 open for online reservation · 17 reserved · 4 unavailable (cause unspecified).
Where the open windows are
80.8% of tracked site-nights are not currently open for online reservation. 5 of 26 remain open; here is where they are.
Load status
Sep 18 – Sep 30, 2026Not open online80.8%
Open site-nights5 / 26
Reserved (of online inventory)17 / 22
Weekday openings5
Weekend openings0
Of the open cabin-nights on mapped sites, 5 fall on weekdays and 0 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Sep 2026September holds the most room. 5 of 26 site-nights are still open there.
Holiday windows
Sites open per night · of 2 cabins| 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 |
Labor Day: no online availability on any tracked night.
Best-availability cabins
Most open cabin-nights · tracked window| Cabin | Open cabin-nights |
|---|---|
| Mammoth Dwelling | 3 |
| Lake Cabin | 2 |
The 2 cabins with the most open cabin-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotNext open dateTue · Sep 22
The next bookable night is Sep 22. Campsite Sniper can watch later dates for you.
Stays and site detail
5 open cabin-nights across 2 cabins at Mammoth Cabin, from the same hourly snapshot as everything above.
Multi-night stays. 2 2-night, 1 3-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 22 at site Mammoth Dwelling.
RV length. Longest recorded site here is 200 ft. 2 sites take 25 ft, 2 sites take 35 ft, 2 sites take 40 ft.
All 2 cabins with current availability
| Cabin | Max RV | Hookups | Open cabin-nights | Longest run | Dates |
|---|---|---|---|---|---|
| Mammoth Dwelling | 200 ft | None | 3 | 3 nights | Sep 22, Sep 23, Sep 24 |
| Lake Cabin | 200 ft | None | 2 | 2 nights | Sep 22, Sep 23 |
About Mammoth Cabin
Overview
The Mammoth Guard station is located at 8,600 feet in elevation. There are two cabins on the grounds. The Mammoth Cabin was built on site while the Lake Cabin was moved to the site from its original location in the 1980s. Both cabins were constructed in the 1930s serving as forest ranger and fire crew dwellings for many years. The cabins overlook a wide expanse of sagebrush valleys with timbered slopes and ridgelines. The grounds that cabins are located is also an active administrative site. Visitors can expect to see Forest Service personnel using the grounds adjacent to the cabins.
Travel Trailers and RVs are not permitted at this facility. If others are seeking to be close to your group during your reservation they should look at the nearby campgrounds at Gooseberry Group Campground and Gooseberry Reservoir.
Recreation
Gooseberry Reservoir is located approximately one and a half miles to the north of the cabins. Fishing is available from the shore, however, the only boating allowed on the reservoir is non-motorized. The reservoir also has several RV sites which can accommodate larger RVs in addition to pit toilets. Gooseberry Campground is approximately 3/4 mile to the south and has several campsites for tents and small to medium RVs, drinking water, and pit toilets are available. A fee is required at both of these sites.
Within 10 miles of the cabins, there are several other lakes and reservoirs. Please check fishing and boating laws for the reservoirs. Access to the Arapeen OHV trail system is available within a few miles of the cabins.
Facilities
The Mammoth Cabin and Lake Cabin have water with a flush toilet and shower in the bathrooms; kitchens are equipped with sinks, stove, and simple cookware (pots/pans, silverware, utensils). A refrigeration unit is not available in the cabins so please plan accordingly. Basic cleaning supplies are provided along with toilet paper. The Mammoth Cabin has two sets of bunk beds with mattresses. The Lake Cabin has two sets of bunk beds with mattresses. The Mammoth Cabin and Lake Cabin can be reserved either individually or together. The Mammoth Cabin has a wood burning stove as an additional source of heat. Pets are not permitted inside the cabins.The garage is used by Forest Service personnel. Please do not block access to the garage.
Natural Features
The cabins are situated in a spruce, fir and aspen forest setting with many mature trees on the facility grounds. You can view wildlife from the front porch of either cabin in the open meadows in the immediate area, including deer, elk, badger, eagles, hawks and more. The Mammoth Cabin receives the most shaded sunlight, while the Lake Cabin receives more direct sunlight.
Nearby Attractions
Located in the Fairview City Museum there is a life size replica of a Columbian Mammoth that was found approximately 10 miles southeast of the cabins. The museum also offers exhibits with artifacts and history from the native people of the area as well as a history of the later settlers. There is access to the 350+ mile Arapeen trail system to the south as well as the Forest roads to the north.
2 monitored cabinsRVs up to 200 ftNo hookups1 shadedFire pitsMax party 4
Getting there
From Fairview, Utah, for 8.5 miles proceed east on Utah Highway 31. Then turn east (left) to Utah highway 264 for .2 miles, then turn left (north) through the paved parking lot to the gravel road, then right (FS road 0124 downhill). You will pass the Gooseberry Campground sign, at the next intersection (FS road 0124) make a slight left and proceed through the gate. The Mammoth Cabin is first, the Lake Cabin is the third building. From US Highway 6 take Utah Highway 96 south through Scofield then onto Utah 264 west for 15 miles. Prior to the junction of Utah 31 and Utah 264 there is a large paved parking lot. Turn north and proceed to the gravel road, then right (FS road 0124 downhill). You will pass the Gooseberry Campground sign, at the next intersection (FS road 0124) make a slight left and proceed through the gate. The Mammoth Cabin is first, the Lake Cabin is the third building.
540 N. Main, Ephraim, UT 84627435-283-4151
BikingBoatingCamping
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-273377 · facility + sites
Photo gallery
Roll CS-273377 · Mammoth Cabin · Ephraim UT11 frames · facility + sites
FAQ
How do I get a reservation at Mammoth Cabin?
Reservations for Mammoth Cabin are made through Recreation.gov. 80.8% of tracked site-nights are not currently open for online reservation; 5 of 26 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.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
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.
How often do new openings appear at Mammoth Cabin?
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.
Can I get a multi-night stay at Mammoth Cabin?
1 three-night opening is showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 22 at site Mammoth Dwelling. Confirm and book on Recreation.gov.
Which sites at Mammoth Cabin fit a 35-foot RV?
2 of the 2 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 200 ft.
Which month has the most availability at Mammoth Cabin?
September 2026, with 5 open site-nights in the current snapshot of 26.
When is the next open date at Mammoth Cabin?
As of the Sep 18, 2026 snapshot: the next open date is Tue, Sep 22. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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