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Mammoth Campground
Yellowstone National Park
Write a Review North Entrance Rd. Yellowstone National Park, WY 82190 307-344-7381 Official WebsiteGPS: 44.9736, -110.6934
Overview of Mammoth Campground
Mammoth Campground is typically open year-round. It is reservable April - mid-Oct. Some sites can accommodate RVs and trailers with a combined max length of 40 ft. During winter, the total vehicle length limit is 30 ft.
Due to infrastructure damage sustained during flooding in June 2022 Mammoth Campground will remain closed until further notice.
Last Price Paid: $29
Reported by DanP on 8/27/2024
Longest RV Reported: 40 feet (Class A)
Reported by Morespeed132 on 10/3/2022
Number of Sites 82
Pad Type gravel
Reservations yes
Elevation 6,036 ft / 1,839 m
Max Stay 14
Max Length 75 ft
Tent Camping Yes
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Q&A - Ask the Community about Mammoth Campground
To ask questions of the owner or manager please contact the campground directly. 307-344-7381
Reviews of Mammoth Campground 21 people have reviewed this location.
Cell Phone Coverage
Confirmed by 9 Users
Last reported 8/23/2024
Confirmed by 2 Users
Last reported 9/26/2020
“Great Place To See Elk At Your Campsite ”
Reviewed 10/15/2024
| Site Number: | 3 |
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Overall Rating
Enjoyed the area so much!
MP would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Site 67 Is Not Flat”
Reviewed 8/27/2024
| Nightly rate: | $29 |
|---|---|
| Days stayed: | 1 |
| Site Number: | 67 |
| RV Length: | 21' (Travel Trailer) |
Overall Rating
Most sites are flat, all are drive threw loops
Water is every other camp site so share
No power, u can run generator 8-8
No dump
Quiet with a great view
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T-Mobile
DanP would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Quiet Caming”
Reviewed 8/23/2024
| Days stayed: | 7 |
|---|---|
| Site Number: | 39 |
Overall Rating
We’ve stayed here in the past when it was first come and the road to Gardiner ran past the campground. Since the flood and rerouting of the road the campground is very quiet and peaceful. Getting a reservation can be challenging, but worth it. The elk visit the campground which makes it an interesting experience. Most campers are he... more
We’ve stayed here in the past when it was first come and the road to Gardiner ran past the campground. Since the flood and rerouting of the road the campground is very quiet and peaceful. Getting a reservation can be challenging, but worth it. The elk visit the campground which makes it an interesting experience. Most campers are here for one or two days and show up later in the day, so there’s not a lot of people or traffic. Definitely my favorite campground in the park
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Verizon 5G
Marsha would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Loved It!”
Reviewed 10/3/2022
| RV Length: | 40' (Class A) |
|---|
Overall Rating
Dates: April 24 - 30. Yellowstone is just awesome. If you know what you are getting into there won't be much negative to say. There was wildlife that would stroll through the campground at will which can be a bit scary and dangerous but if you aren't an idiot then it is very, very cool! There weren't any hookups but we knew that going ... more
Dates: April 24 - 30. Yellowstone is just awesome. If you know what you are getting into there won't be much negative to say. There was wildlife that would stroll through the campground at will which can be a bit scary and dangerous but if you aren't an idiot then it is very, very cool! There weren't any hookups but we knew that going into it and there was a water fill spot which was nice. They did have bathrooms for everyone that didn't have onboard bathrooms. Site was actually quite level which was a surprise. Verizon signal was also fairly decent (it is non existent once you travel into the park proper). Generator use was allowed from 8am to 10pm.
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Verizon 4G
Morespeed132 would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Nice location in Yellowstone, a bit noisy”
Reviewed 7/29/2021
| Nightly rate: | $25 |
|---|---|
| Days stayed: | 3 |
Overall Rating
We stayed here for 3 nights using the first come for cancellations method, each morning. We would be in line by at least 7 and we're able to get a cancelled site each day. Not too bad for not having reservations going to Yellowstone. The sites are open and sunny in the sagebrush. A bit noisy, though, as it is on the S curve of the ... more
We stayed here for 3 nights using the first come for cancellations method, each morning. We would be in line by at least 7 and we're able to get a cancelled site each day. Not too bad for not having reservations going to Yellowstone. The sites are open and sunny in the sagebrush. A bit noisy, though, as it is on the S curve of the main entrance to Yellowstone. It is also quite a ways to the Southern activities in the park. Makes for some longer days home. It is very close to Gardiner, so gas and food is cheaper. Overall, a great spot for the northern half of the park.
JoelH would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Convenient and Clean”
Reviewed 7/8/2021
| Nightly rate: | $12 |
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| Days stayed: | 2 |
| Site Number: | 61 |
| RV Length: | 20' (Class B) |
Overall Rating
Pros: Clean bathrooms, easy to access dumpsters, big bear boxes, easy pull-through, accessible to seeing the park, friendly hosts, some shade, some sun which helped with the solar panels Cons: Terraced so that there isn't a lot of privacy from those below you and around you. The site we were in was nice and we were lucky to have a... more
Pros: Clean bathrooms, easy to access dumpsters, big bear boxes, easy pull-through, accessible to seeing the park, friendly hosts, some shade, some sun which helped with the solar panels
Cons: Terraced so that there isn't a lot of privacy from those below you and around you.
The site we were in was nice and we were lucky to have a fresh water pump right next to our camp site. We really liked how well maintained everything was and it was very easy to pull through our site. The gravel wasn't that level, but that's what leveling blocks are for. Right?
Bonus: Elk walked right through the campground and lingered in sites 62 and 63...so right next to us.
Verizon 4G
oceansnmountains would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Amazing - What Else is there to Say?!”
Reviewed 5/22/2021
| Nightly rate: | $25 |
|---|---|
| Days stayed: | 4 |
| Site Number: | 33 |
| RV Length: | 22' (Travel Trailer) |
Overall Rating
We stayed here in mid-May from the 16th-20th. We had a tough time finding a spot to camp at in Yellowstone initially as the first campground we booked through Xanterra for our first planned dates were cancelled by the agency for reasons unknown. We then found out, after some online searching and a forum through TripAdvisor, that Recrea... more
We stayed here in mid-May from the 16th-20th. We had a tough time finding a spot to camp at in Yellowstone initially as the first campground we booked through Xanterra for our first planned dates were cancelled by the agency for reasons unknown. We then found out, after some online searching and a forum through TripAdvisor, that Recreation.gov and Yellowstone began a new partnership that would allow campers to choose their campsite online instead of betting on the first-come first-served system. This was really helpful for us, as we were traveling from miles away and had no idea when we would be able to make it to the campsite.
Our site was clean and level. It is a pull through site, but it doesn’t join another campsite’s area like a lot of the other ones did. It was fairly shaded, but nice for the time we were there. The sun was out a lot so that helped our solar panel with charging our batteries to keep our fridge running as this whole campsite does not have electricity or showers. The nighttime was especially nice because of the non-electric atmosphere, making it hard for many people to play their music and have a whole lot of lights out on their campers. Cooking wasn’t hard either, and the camp and park rangers request that all of your food you make is eaten immediately and not left out. All trash is to be disposed of in your camper or the special trash bins they have throughout the park. The firewood you can buy at the campsite was good for s’mores as long as you don’t make too much of a mess in order to not attract bears and other animals into the area. We did feel safe with the camp hosts patrolling the area often and making sure everything was in order. The camp rules say that you can only run your generator from 8am-8pm, but that gets hard sometimes when you get back late. We didn’t have anyone tell us that we needed to turn it off, and our generator was pretty quiet, so the trucks driving by were louder than our generator.
We didn’t see any bears or bison in our campsite, though there was evidence of bison right by our campsite. We did, however, see a group of elk in the area by our campsite and a very pretty magpie that flew around the entrance, as well as several prairie dogs. The accessibility to the Lamar Valley area and Mammoth Hotsprings and Gardiner was nice as well. If you stay here, be prepared for amazing views and lots of memories!
DsmKnmTravels would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Convenient to northern YNP including Lamar Valley”
Reviewed 11/13/2020
| Nightly rate: | $10 |
|---|---|
| Days stayed: | 10 |
| Site Number: | 12 |
| RV Length: | 27' (Travel Trailer) |
Overall Rating
We were there mid to late October. While there are no hookups, we did like the heated rest rooms with flush toilets, hot running water, and electric plugs (we used our inverter but saw several times that folks were charging their phones in the restrooms). We were arriving on a Saturday, so we got in line at the entrance at 5:55. The... more
We were there mid to late October. While there are no hookups, we did like the heated rest rooms with flush toilets, hot running water, and electric plugs (we used our inverter but saw several times that folks were charging their phones in the restrooms). We were arriving on a Saturday, so we got in line at the entrance at 5:55. There were 3 rigs ahead of us and many came after. The rangers started processing site assignments at 7am. We were assigned a site a little before 8am. The pull-thru site made setting up quick, which was nice since it was 26 degrees outside.
We liked the proximity to Lamar Valley, and drove it many times. Saw bear, bison, pronghorn, an eagle, coyotes and wolves. Even saw coyotes with a bison kill. On one of the days that had snow, we enjoyed a drive through Lamar Valley to Cooke City. Great burgers at the Bistro Cafe. The scenery heading out of the park and on the way to Cooke City is spectacular and worth the drive.
We also drove to the Grand Canyon, Old Faithful and Midway Geyser basin from Mammoth, although they are easier reached from other campgrounds in the park (but they were all closed for the winter).
There was no cell coverage in the campground, but a short drive toward Gardner brought us in range, at a large pullout before the entrance gate. Added benefit, we saw bighorn sheep along the way! The campground is near the main highway, but I was surprised that the road noise was no bother. Of course, with the winter temperatures and being on the go most of the time, we didn’t sit outside. We did go through propane, and refilled our tanks at the Sinclair station just outside the northern edge of Gardner. All the dump stations in the park were closed for the winter—before arriving we used the dump station at Grizzly RV Park in West Yellowstone. We had hoped to use them again when we left Mammoth, but they were closed. We were driving south into Idaho so we used the dump station 95 miles south in Rigsby at Bob’s Kwik Service.
The elk herd that stays around Mammoth headquarters/store did come down to the campground one day, fun to see (keeping a distance). Another day a large bull elk with 2 females across the road did an impressive display of bugling, countered by another bull up behind us.
Many of the days we were at Mammoth were snow days, and park staff worked quickly to clear the roads. Finally the weather predictions were for -10 degrees in a couple days, and it was time to head south! By the time we left, the campground had only about four occupants.
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AT&T
Sue G. would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Great location and motorcycle only sites”
Reviewed 9/26/2020
| Nightly rate: | $20 |
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| Days stayed: | 2 |
| Site Number: | 29 |
Overall Rating
I arrived late, around 6pm, even though the campsite had a “Full” sign, I pulled in to ask for suggestions. He said, for you, we have two motorcycle-only sites. I was elated! This is a great campsite location, really close to Mammoth Springs General Store and gas, and lots of wildlife. Elk, Wolves, you name it.
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AT&T 4G
Terry Dude would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
“Close to Mammoth Hot Springs”
Reviewed 9/30/2019
| Nightly rate: | $20 |
|---|---|
| Days stayed: | 5 |
| Site Number: | 12 |
| RV Length: | 24' (Travel Trailer) |
Overall Rating
When we arrived at 9 am on a Wednesday in mid-September, we were 3rd in line for an RV campsite, 6th overall. The campground filled by 11 am. Since it is a walk-in campground, you do need to arrive early, as the rangers keep track of your spot in line and campsites are assigned in order of arrival as the sites are vacated. The c... more
When we arrived at 9 am on a Wednesday in mid-September, we were 3rd in line for an RV campsite, 6th overall. The campground filled by 11 am. Since it is a walk-in campground, you do need to arrive early, as the rangers keep track of your spot in line and campsites are assigned in order of arrival as the sites are vacated.
The campground is close to Mammoth Hot Springs and the Albright Visitors Center where there is free WiFi available (tip: for best WiFi speed, sit on the front porch of the Visitors Center after closing time). There are plenty of threaded water spigots around the campground (but no dump station — we dumped at Yellowstone RV Park in Gardiner, MT). Cell service was 3 bars Union - US Telephone 3G, but we didn’t get to use it much because of the roaming limit we have on our cell plan.
We were assigned a pull-through site, #12 (I think all sites are pull-throughs) right next to the highway. Other than the road noise, it was a pretty nice site with lots of sun for the solar panel. There was a lot of low brush between campsites, which was nice for a bit of privacy, and we were right next to a threaded potable water spigot. The sites are fairly level and it is pretty easy to get in and out of the campground.
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T-Mobile
PBJ 4 the Road would stay here again
This review is the opinion of a Campendium member and not of Campendium.com
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Amenities
Hookups
- dry camping
Recreation
- recreation trail
Site Amenities
- big rig
- fire ring
- picnic table
- pull thru
Facilities
- firewood
- ADA Accessible
- recycle
- restrooms: flush
- trash
- water available
Pets
- pets
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