Cell service exists but varies by carrier; no campground Wi-Fi.

Reservations open up to six months in advance on Recreation.gov.

Mammoth Campground: Tent and RV Camping Guide

Q: Do sites have hookups?

No hookups at Mammoth Campground.

Q: Is there a dump station on-site?

No; nearest dump station is in Gardiner, MT.

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Overview

About This Campground

Set on a hillside at 6,200 ft, Mammoth Campground offers RV and tent sites with fire rings and picnic tables. Water spigots are scattered throughout, but there are no on-site showers; Gardiner provides the nearest public showers about 5 miles away. A Bear country campground with 85 sites, it stays busy in peak season and you should book far in advance on Recreation.gov. Trails to Mammoth Hot Springs are nearby, and quiet evenings are common—though a few late arrivals have been noted.

Highlights

Site Types

RV sites, Tent sites

Scenic Views

Expansive views from some sites

Nearby Attractions

Mammoth Hot Springs; Gardiner; Yellowstone attractions within short drive

Family Friendly

Flush toilets; kid-friendly; quiet hours; be bear-aware

Best Time to Visit

Summer to early fall; book six months out

Camping Tips

Book six months ahead on Recreation.gov
Bear safety: store food in bear boxes
Pack warm layers for 6,200 ft
Bring a water bottle and refill at potable spigots
Pack it in, pack it out

RV Driver Intel

The Setup

Most sites are pull-through; some back-in; internal roads paved; expect some leveling on gravel pads; limit of 3 vehicles; winter length may affect site choice

The Vibe

Functional basecamp with hillside charm; not a resort, but clean, quiet, and close to Mammoth area

Bath & Laundry

No on-site showers; nearest Gardiner showers; flush toilets; no on-site laundry

Details

Campsite Information

Total Sites: 85

RV Max Length: 40 ft generally; some sites up to 75 ft; winter limit 30 ft

Hookups: No hookups (no electrical, water, or sewer)

Site Types

RV sites, Tent sites

Each Site Includes

Fire ring with grate
Picnic table at most sites; some sites have tent pads; gravel parking pads; 3-vehicle max per site

Activities

Hiking, fishing, wildlife viewing, ranger programs (seasonal); nearby Mammoth Hot Springs trails

Amenities & Facilities

Campground Amenities

Showers: No on-site showers; Gardiner public showers ~5 miles away
Restrooms: Flush toilets year-round
Water: Potable water spigots available throughout
Trash: Bear-proof dumpsters and recycling bins

Facilities

RV Dump Station: No on-site dump station; nearest in Gardiner, MT (~5 miles)
Camp Store: No
Firewood: Firewood sold seasonally; fires in designated rings per restrictions
Amphitheater: Seasonal ranger programs at the on-site amphitheater

Utilities

Restrooms: Flush toilets year-round

Showers: No on-site showers; Gardiner public showers ~5 miles away

Policies & Rules

Reservations

Recreation.gov (Booking: Reservations up to six months in advance on a rolling basis)

Pet Policy

Pets Allowed - Leashed (6 feet max); not allowed on trails or boardwalks

Reviews

★★★★☆

4.6 /5

Based on 250 Google reviews

Reviews from Google

Wonderful quiet campground perfectly settled in the nature. James and his wife are incredible campsite hosts and always there if assistance is needed. Bathrooms are modern and new and heated.

This is inside Yellowstone national park. Everything is well set up. Many wild animal hang around you. Perfect place to camp.

Great campground, well maintained. Hosts are friendly and amenities are great. Only issue I take is generator hours shutting you down at 8pm. Better have good batteries or solar generator to get you through the evening. Bathrooms were great. Make sure to obey bear rules, otherwise they will cite you. Traveling buddy almost got on 10 campsites away for leaving his grill out while he filled up on water. Otherwise great location, real close to Gardiner. Kind of a windy road but it has stuff if you need it.

Showing 3 of 250 reviews

FAQs

Are there bears?

Yes. Bear country; store food properly and use bear boxes.

Do sites have hookups?

Is there a dump station on-site?

Is Wi-Fi available?

When can I reserve?

📖 nps.gov 📖 parkrangerjohn.com 📖 yellowstone.net 📖 yellowstonepark.com 📖 nationalparkstraveler.org 📖 outdoorithm.com 📖 overlandgirl.com 📖 recreation.gov 📖 wanderlog.com 📖 yellowstone.co 📖 quora.com 📖 reddit.com 📖 thedyrt.com 📖 goodsam.com 📖 snoflo.org 📖 yellowstoneparknet.com 📖 perfectcamp.com 📖 localnews8.com 📖 mt.gov 📖 campsites4u.com 📖 yellowstonenationalpark.com 📖 hipcamp.com ⭐ Google Reviews 🏞️ National Park Service 📝 YourNPGuide Editorial

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Mammoth Campground