Mammoth Campground (Yellowstone)
Yellowstone National Park
Mammoth Campground (Yellowstone) in Montana has 5 open booking windows on Recreation.gov right now, the soonest Mon Oct 12–Thu Oct 15. Reserve directly through the booking link above — cancellations go fast. To catch future openings the instant they appear, set a free CampSage cancellation alert.
⚡ EV charging nearby
Nearest DC fast charging: 6.9 mi away (straight line).
Distances are straight-line, not driving — the road can be much longer where a river, a lake or a canyon sits in between. From OpenStreetMap — community-mapped, so plug types can lag reality. Verify on your charging network’s app before counting on a charger.
🔭 Planning further ahead?
We watch the next 60 days closely — that's where cancellations show up. recreation.gov takes bookings out to about April 2027, so there may be 2+ night stays past our window.
📊 How often sites open up here
CampSage's scans caught 26 openings at Mammoth Campground (Yellowstone) over the last 30 days, on 22 separate days, most of them for stays 5–13 days out and the openings typically covered 2–3 nights.
These are the openings our own scans saw — not a figure the booking system publishes. We re-check availability several times a day, so the real number can be higher.
🏕️ About this campground
Ratings
📶 Cell coverage camper-reported
💡 Insider tips from campers
❓ Mammoth Campground (Yellowstone) FAQ
How do I reserve a campsite at Mammoth Campground (Yellowstone)?
Mammoth Campground (Yellowstone) in Montana takes campsite reservations through Recreation.gov. On this page, use the “Book / check availability” button to open the live booking page, see which dates are free, and reserve your site.
How much does it cost to camp at Mammoth Campground (Yellowstone)?
Campsite fees at Mammoth Campground (Yellowstone) run about $25/night, as listed by Recreation.gov. Exact rates vary by site type, number of campers, and season.
How can I get a spot at Mammoth Campground (Yellowstone) when it's fully booked?
Popular campgrounds like Mammoth Campground (Yellowstone) often fill months ahead, but campers cancel every day and those sites reopen for booking. CampSage checks availability for you and sends a free email the instant a cancellation opens — set an alert on this page and you can grab the spot before anyone else.
How often do campsites open up at Mammoth Campground (Yellowstone)?
CampSage's scans caught 26 openings at Mammoth Campground (Yellowstone) over the last 30 days, on 22 separate days, most of them for stays 5–13 days out and the openings typically covered 2–3 nights. These are the openings our own scans saw — not a figure the booking system publishes. We re-check availability several times a day, so the real number can be higher.
Is Mammoth Campground (Yellowstone) a good campground?
Mammoth Campground (Yellowstone) holds an average rating of 4.5/5 from 834 camper ratings on Recreation.gov. The full star breakdown is shown above.
Is there cell service at Mammoth Campground (Yellowstone)?
Of the carriers campers have reported on at Mammoth Campground (Yellowstone), Verizon rates highest at 2.4 out of 5 from 307 reports. See the carrier-by-carrier breakdown above — service can still vary by campsite, terrain, and weather.
Where is Mammoth Campground (Yellowstone) located?
Mammoth Campground (Yellowstone) is located in Bozeman / Gallatin NF, Montana. Tap “Directions” above for driving directions, or see nearby campgrounds lower on this page.
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