NPS · Yellowstone National Park · Yellowstone, WY

Mammoth Campground (Yellowstone)

More like this: reservable in Wyoming · pets allowed in Wyoming

Check availability on Recreation.gov ↗
Mammoth Hot Springs boardwalk in front of a hydrothermal featureMammoth Campground (Yellowstone)Mammoth Campground (Yellowstone)Mammoth facing east to a bluff from campsite 2
Photos courtesy of NPS Photo (Diane Renkin), NPS photo, NPS, NPS Photo (Neal Herbert) · Recreation.gov

Site mix

Standard, no hookups81
Host/management6
Most sites here open on Recreation.gov six months ahead, at 10 a.m. Eastern. Sold out is not final: cancellations come back into the pool, most of them two to three days out. How to catch one

Site guide

Will my RV fit

The longest site here provides 40 feet of vehicle capacity. Most sites are shorter.

Have the trailer VIN? It carries the trailer length.

81 sites in 4 loops. Tap a filter to narrow the list; the map follows.

SiteLoopEntryFits, ftSurfaceShadeWater / sewerPeople / vehiclesFiresAccessible
Mammoth site #2APull-through50Gravel6 / 3Yes
Mammoth site #3APull-through52GravelNo / –6 / 3Yes
Mammoth site #4APull-through52PavedNo / –6 / 3YesYes
Mammoth site #5APull-through68GravelNo / –6 / 3Yes
Mammoth site #6APull-through60GravelNo / –6 / 3Yes
Mammoth site #7APull-through60GravelNo / –6 / 3Yes
Mammoth site #8APull-through62GravelNo / –6 / 3Yes
Mammoth site #9APull-through62GravelNo / –6 / 3Yes
Mammoth site #10APull-through66GravelNo / –6 / 3Yes
Mammoth site #11APull-through55GravelNo / –6 / 3Yes

Per-site records as published by the managing agency on Recreation.gov. Blank cells mean the agency listed nothing for that site. Check-in 10:00 AM, checkout 10:00 AM.

Amenities & rules

HookupsNone
Max vehicle length33 ft
EquipmentRVs & trailers, Tents
PetsAllowed
CampfiresAllowed, subject to restrictions
FeesThe camping fee in Mammoth Campground is $25 per night per site.
AccessibilitySites Mammoth site #4, Mammoth site #15, Mammoth site #55, Mammoth site #36 and 1 more are listed accessible
  • 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

Individual sites vary. Confirm on Recreation.gov or with the managing office.

Weather by month

NOAA climate normals →
Weather by month near Mammoth Campground (Yellowstone)20°30°40°50°60°70°January: 0.91 inches of precipitation, 11.5 inches of snowFebruary: 0.79 inches of precipitation, 11.5 inches of snowMarch: 1.09 inches of precipitation, 10.9 inches of snowApril: 1.40 inches of precipitation, 7.8 inches of snowMay: 1.82 inches of precipitation, 1.7 inches of snowJune: 1.86 inches of precipitation, 0.3 inches of snowJuly: 1.27 inches of precipitation, 0.0 inches of snowAugust: 1.05 inches of precipitation, 0.0 inches of snowSeptember: 1.21 inches of precipitation, 0.6 inches of snowOctober: 1.34 inches of precipitation, 4.7 inches of snowNovember: 1.15 inches of precipitation, 9.9 inches of snowDecember: 0.91 inches of precipitation, 12.6 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 21.7°F averageFebruary: 23.3°F averageMarch: 30.5°F averageApril: 38.0°F averageMay: 47.1°F averageJune: 55.8°F averageJuly: 64.6°F averageAugust: 63.1°F averageSeptember: 53.9°F averageOctober: 41.3°F averageNovember: 29.3°F averageDecember: 21.1°F average0 in5 in10 in15 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Yellowstone Park Mammoth, less than a mile from the campground at 6,195 feet, station USC00489905 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 15 inches a year. The dotted line is average snowfall, about 72 inches a year on the same inches scale.

Getting there

The Mammoth Campground is located in the Mammoth Hot Springs area in the Northen section of the park, five miles from the park's North Entrance near Gardiner, MT. Visit the park's website for more information including directions and maps: https://www.nps.gov/yell/planyourvisit/directions.htm

Nearest townYellowstone, Wyoming
Coordinates44.9736° N, 110.6932° W · Directions ↗

Good to know

  • 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 Natio

Charges and cancellations

Changing Reservations: There is no change fee if a visitor extends or shortens a reservation, as long as the change includes dates from the original reservation. Additionally, there is no change fee if the visitor wants to switch sites that are the same price with the same reservation dates in the same facility. If a visitor wants to switch dates that are entirely outside of the original reservation dates, there is a $10 change fee. If a reservation is made that includes dates beyond the maximum booking window, that reservation cannot be changed until 18 days have passed from the original booking date. Onsite staff will assist with changes or cancellations. A $10 service fee will be withheld from any refund for a cancellation. A visitor who cancels a reservation the day before or on the day of arrival will pay a $10.00 service fee AND forfeit the first night's approved rate including tax and applicable add-on.

Fire nearby

  • Prescribed
    Shenango Pile Rx

    43 mi from the campground

Distance is to the reported incident point, not the fire edge. Call the managing office before you drive.

Supplies & services

Outdoor gearParks Fly Shop ↗4 mi
Dump stationDump station ↗19.2 mi
RV sales & serviceValley Trailer Sales Inc ↗58.7 mi

Locations © OpenStreetMap contributors. Call ahead; hours change seasonally.

Explore

Video

Mammoth Campground | Yellowstone National Park | Site by Site Tour | See all the Campsites

Worth a stop

  • 4.3 mi
    Yellowstone River
    2.8 mi trail · hiking, horse

Trail and trailhead records are the Forest Service's. Distances are straight-line to the nearer trail end. Trail conditions are not tracked here.

Public land it sits in

On Wilderness Atlas →

This campground sits inside Custer Gallatin National Forest.

Each unit is published as a centre point and an acreage rather than a boundary, so this section stands it in for a circle of the same area. Whether a campground is inside, and how far it is from one it is outside, are both approximate.

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. The road from the North Entrance to the Mammoth Campground winds up the Gardner River canyon, past crumbling walls of sandstone and ancient mudflows. The vegetation is much thicker in the canyon than on the open prairie down below, the common trees being Rocky Mountain juniper, cottonwood, and Douglas-fir. Low-growing willows also crowd the river's edge in the flatter, flood-prone sections of the canyon. Watch for wildlife, which varies by the season. Eagles, osprey, dippers, and kingfishers can be spotted along the river, while bighorn sheep climb along the steeper parts of the canyon. Elk are common in Mammoth Hot Springs, while bison can often been seen along the road out to Tower–Roosevelt. Spring and Fall daytime temperatures range from 30°F (-1°C) to 60°F (15°C) with overnight lows in the teens to single digits. Snow is common in the spring and fall.

Recreation

  • There are many recreational opportunities in the Mammoth Hot Springs and the North area.
  • Boating
  • Fishing
  • Hiking
  • Photography & Wildlife Watching
  • Explore the boardwalks above Mammoth Hot Springs to view 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.

Guidebooks for Yellowstone National Park

We earn a small commission if you buy through these links. It does not change what we list.

  • Ranger Rowan's Guide to Yellowstone National Park
    Katie Parr, 2025
    Find at Bookshop.org
  • Moon Montana: with Yellowstone National Park
    Carter Walker, 2023
    Find at Bookshop.org
  • Yellowstone & Grand Teton National Parks
    Andrew Dean Nystrom, 2017
    Find at Bookshop.org
  • Nature guide to Yellowstone National Park
    Ann Simpson, 2016
    Find at Bookshop.org
  • The Yellowstone fly-fishing guide
    Craig Mathews, 2019
    Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

Do I need a reservation at Mammoth Campground (Yellowstone)?

Sites at Mammoth Campground (Yellowstone) are reservable on Recreation.gov. Any walk-up sites are listed on the booking page.

Source: Recreation.gov

How much does it cost to camp at Mammoth Campground (Yellowstone)?

The camping fee in Mammoth Campground is $25 per night per site.

Source: Recreation.gov

What time is check-in at Mammoth Campground (Yellowstone)?

Check-in 10:00 AM, checkout 10:00 AM.

Source: Recreation.gov

What does it cost to cancel a reservation at Mammoth Campground (Yellowstone)?

A $10 service fee will be withheld from any refund for a cancellation.

Source: Charges and cancellations

How many sites does Mammoth Campground (Yellowstone) have?

87 sites, including 81 standard sites without power.

Source: Recreation.gov

Will my RV fit at Mammoth Campground (Yellowstone)?

The longest site here provides 33 feet of vehicle capacity. Most sites are shorter. The sidebar tool checks a trailer or motorhome length against every site.

Source: Will my RV fit

Are there showers or a dump station at Mammoth Campground (Yellowstone)?

Flush Toilets - year round

Source: Recreation.gov

Are pets allowed at Mammoth Campground (Yellowstone)?

Yes, pets are allowed at Mammoth Campground (Yellowstone). Leash rules apply.

Source: Recreation.gov

Can I have a campfire at Mammoth Campground (Yellowstone)?

Fires are allowed in the provided rings under normal conditions. As of 2026-10-16, there is 1 active fire within 50 miles, so check current restrictions before you light one.

Source: Fire nearby

Are there accessible sites at Mammoth Campground (Yellowstone)?

Sites Mammoth site #4, Mammoth site #15, Mammoth site #55, and Mammoth site #36 are listed accessible on Recreation.gov, 5 sites in all. What that covers (a paved pad, an accessible table, a nearby accessible restroom) is on each site's booking page.

Source: Recreation.gov

Is there cell service at Mammoth Campground (Yellowstone)?

FCC coverage maps show Verizon 5G at the campground point. Terrain changes that from one site to the next.

Source: FCC Broadband Map

What is there to do at Mammoth Campground (Yellowstone)?

There are many recreational opportunities in the Mammoth Hot Springs and the North area. The Recreation section on this page has the rest.

Source: Recreation