Yellowstone National Park, Wyoming
Do you manage this campground? Claim this page
Current National Park Service alerts
Biscuit Basin Closed Due to Hydrothermal Explosion
The parking lot, boardwalk, and Firehole River at Biscuit Basin, located north of Old Faithful, is closed to all travel until further notice due to the possibility of another event at the site of a hydrothermal explosion that occurred July 23, 2024.
Park Closure · updated Jul 1, 2026 · Official notice
Stay Away From Bull Elk
Bull elk are fast and unpredictable this time of year and can seriously injure people. If an elk charges, run. In addition to staying at least 25 yards (23 m) away from elk and bison, always stay at least 100 yards (91 m) away from bears and wolves.
Caution · updated Aug 26, 2026 · Official notice
Checked Oct 25, 8:25 am (America/Denver). Conditions change quickly - confirm on the official park page before you go.
At a glance: Confirmed: drinking water and flush toilets. No electric hookups or showers. Listed for rigs up to 40 ft.
Get updates when fees or status change
Amenities
“Not listed” means the official sources don’t say - it does not mean “no”.
- Electric hookups No
- Drinking water Yes
- Flush toilets Yes
- Showers No
- Dump station No
- Water hookups at sites No
- Sewer hookups Not listed
- Tent sites Yes
- RV / trailer sites Yes
- Reservable online Yes
Sites, fees and season
- Campsites
- 87
- Longest RV / trailer listed
- Up to 40 ft at selected sites (not every site; check access and your site)
- Elevation
- 6,049 ft
- Open season
- Mammoth Campground is typically open year-round, though part of the campground is closed mid-October through April. Reservation-only 4/15-10/15. Checkout time is 10 am. (as listed by National Park Service, Oct 25, 2026)
- Phone
- (307) 344-2107 (campground or managing office)
- Listed fees
- $25.00 per site per night - Nightly Fee
Official fee information
Nightly Fee: $25.00 - Interagency Access and Senior Pass holders receive a 50% discount.
The listed length is the longest site; not every site fits that size. Confirm your site on the official reservation page.
From the official listing
Starting Tuesday April 15th, the Mammoth Campground is open and reservations are required.
For reservations at the campgrounds managed by Yellowstone National Park Lodges (Fishing Bridge RV Park, Bridge Bay, Canyon, Madison, and Grant Village campgrounds), please visit the Yellowstone National Park Lodges Camping website.
Recreation
There are many recreational opportunities in the Mammoth Hot Springs and the North area. Visit these pages to learn more:
Boating
Fishing
Hiking
Photography & Wildlife Watching
Explore the boardwalks above Mammoth Hot Springs to view the the steaming Hydrothermal Features or take a drive around the vibrant travertine terraces.
Explore in Winter. Ski or snowshoe among the whiffs of sulfur along the Upper Terraces.
Explore the historic Fort Yellowstone area.
Visit the park's Mammoth & Hot Springs North web page to learn more.
Facilities
Mammoth Campground offers:
82 campsites Some Cell Phone Reception Food Storage Lockers Trash/Recycling Collection Amphitheater - Seasonal Staff or Volunteer Host On Site - Seasonal Potable Water spigots Flush Toilets - year round
There are no showers at the campground
Natural Features
The Mammoth Campground is in a high sagebrush steppe, scattered juniper and Douglas fir trees provide shade during hot summer months. Wildlife including elk, bison, pronghorn, and mule deer frequent the Mammoth Hot Springs and the North area of the park, depending on the season.
Climate by month
Average daily high and low and monthly precipitation, 1991-2020 normals from the NOAA station Yellowstone Park Mammoth - 0.3 mi away, station at 6,195 ft - 146 ft higher than the campground (6,049 ft). Long-term averages, not a forecast; the open season is listed separately above.
| Month | High °F | Low °F | Precip. in |
|---|---|---|---|
| Jan | 31 | 12 | 0.91 |
| Feb | 34 | 12 | 0.79 |
| Mar | 42 | 19 | 1.09 |
| Apr | 50 | 26 | 1.40 |
| May | 60 | 35 | 1.82 |
| Jun | 70 | 42 | 1.86 |
| Jul | 81 | 48 | 1.27 |
| Aug | 80 | 46 | 1.05 |
| Sep | 69 | 39 | 1.21 |
| Oct | 54 | 29 | 1.34 |
| Nov | 39 | 19 | 1.15 |
| Dec | 30 | 12 | 0.91 |
Highlight months with an average high between and °F:
Location and nearby campgrounds
Location on the map · Driving directions · 44.97361, -110.69323 (the official listing point; check the access road for large rigs)
- Indian Creek Campground (WY) 6.3 mi straight-line
- Tower Fall Campground 16.0 mi straight-line
- Norris Campground 16.3 mi straight-line
- Slough Creek Campground 19.0 mi straight-line
- Canyon Campground 19.3 mi straight-line
Photos from visitors
No visitor photos yet. Photos of the sites, restrooms and the road in help the next camper decide.
Visitor reviews
No reviews yet. Have you stayed here? Your experience helps the next camper.
Log in to write a reviewCreate a free account
Reviews are the personal experience of registered visitors. They do not change the official facts above; a reported problem (for example "the water was off") is checked against the official sources.
Estimate your trip cost
Sources
| Fact | Source | Fetched from the source |
|---|---|---|
| Campsites | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Reservable online | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Tent sites | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| RV / trailer sites | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Electric hookups | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Water hookups at sites | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Drinking water | National Park Service | Oct 25, 2026 |
| Flush toilets | National Park Service | Oct 25, 2026 |
| Showers | National Park Service | Oct 25, 2026 |
| Dump station | National Park Service | Oct 25, 2026 |
| Longest RV / trailer listed | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Elevation | USGS elevation (EPQS) | Oct 25, 2026 |
| Lowest listed fee | National Park Service | Oct 25, 2026 |
| Highest listed fee | National Park Service | Oct 25, 2026 |
| Open season | National Park Service | Oct 25, 2026 |
| Official page | National Park Service | Oct 25, 2026 |
| Official reservations | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
| Phone | Recreation.gov (RIDB) | Oct 25, 2026 source updated Oct 19, 2026 |
Last successful data update for this page: Oct 25, 2026. That is when we last read the official sources - not a personal visit, and not the date the source itself changed (shown per fact above). Found something wrong? Report an error.