Warning
GeneralSummer Update: Enhancing our campground for youOur campground is getting an upgrade! A significant, multi-year construction project to enhance utility infrastructure will be occurring within the campground this summer. To minimize disruption to the campground experience, noise creating construction activities will be limited to 9am to 6pm. Please note that our laundry facilities will also have reduced availability during this project. We appreciate your patience as we improve your experience for seasons to come and cannot wait to welcome you this summer!
About Headwaters Campground at Flagg Ranch
Number of accommodations: 165
Campground Amenities
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General Store
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Pet Friendly
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Potable Water
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Restaurant
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Showers
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Propane
Seasonal information
2026 Season availability
Sites & Availability
165 Sites Available
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Site Details
Select a site to view details
165 Sites Available
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
Reviews (554)
What Guests Are Saying
Headwaters Campground at Flagg Ranch is highly praised for its excellent location between Yellowstone and Grand Teton, making it a convenient base for exploring both parks. Reviewers appreciate the clean facilities, friendly staff, and well-maintained grounds, along with amenities like hot showers and a grocery store on-site. While some noted noise levels and tight campsite spacing, many expressed satisfaction with their overall experiences and indicated they would return.
What Guests Are Saying
Headwaters Campground at Flagg Ranch is highly praised for its excellent location between Yellowstone and Grand Teton, making it a convenient base for exploring both parks. Reviewers appreciate the clean facilities, friendly staff, and well-maintained grounds, along with amenities like hot showers and a grocery store on-site. While some noted noise levels and tight campsite spacing, many expressed satisfaction with their overall experiences and indicated they would return.
Review Summary
Gerik B
VerifiedOctober 10, 2024 • Stayed at: 531, Loop: 500s
Stayed at the non-electric cabins for 3 nights. Stayed a relatively good temperature even on the freezing nights (bundle up). We got these mostly for the showers. They were usable but the water pressure and temperature were all over the place.
David W
VerifiedOctober 10, 2024 • Stayed at: 418, Loop: 400s
The campsite planners did a great job of weaving the campsites through the woods leaving a lot of trees. Sites are a little tighter than other campgrounds, but we had no trouble setting up our trailer with a large slide.
Laundry is convenient, but a little more expensive than other campgrounds.
Bathrooms and showers were clean and functional.
Will definitely stay again on our next visit to Yellowstone and the Tetons.
Allison A
VerifiedOctober 7, 2024 • Stayed at: 109, Loop: 100s
Campground was clean. The cabins were nice. With just three of us, they actually stayed pretty warm.
David L
VerifiedOctober 4, 2024 • Stayed at: 430, Loop: 400s
Flagg Ranch is perfectly situated between Yellowstone and the Tetons. Nice size sites. Should have planned on staying longer. Only negative comment I can make is they need a better sign for people coming from the south on 191/287.
Cynthia H
VerifiedOctober 4, 2024 • Stayed at: 105, Loop: 100s
Loved the food and the service at the Lodge! The wait staff were all friendly, interesting and had good suggestions on where to go in Yellowstone and Grand Teton. We loved meeting the foreign and native young people. The food was fabulous and filling.
I am especially grateful to the staff that helped me change our tent camp site to a camping cabin. Even though there was no electricity or heat -- having a roof over our head to keep us dry during two days of rain; being able to put our food in the cabin to keep it safe from bears; and having a table and chairs -- made the cabin an excellent value.
Dainius S
VerifiedOctober 4, 2024 • Stayed at: 611, Loop: 600s
It is a great place to stay between Grand Teton and Yellowstone parks. The price includes showers, place to wash dishes, and hot water, which is great. Several campsites have a direct view to Teton mountains - we could see them from our tent! Staff is very friendly and helpful. Close to the campground there is a gas station and a small shop, which is quite convenient considering the next closest shop is like one hour away by car. Would definitely stay here again.
James A
VerifiedOctober 4, 2024 • Stayed at: 619, Loop: 600s
Flagg Ranch Campground was a major disappointment. The bathrooms and showers were dirty, very old and worn out. The Laundry room was a disgrace, absolutely filthy, with broken machines out of order, and several of the washers not working very well. The costs of the site were really high for a park of this poor quality. We paid less at Fishing Bridge RV in the heart of Yellowstone, and the facilities were spotless and well staffed. I would not recommend this campground to anyone.
Chris F
VerifiedOctober 2, 2024 • Stayed at: 402, Loop: 400s
I stayed at the campground in mid-September, and while the area has potential, I’m giving it 3 stars due to the flooding issues. Unfortunately, heavy rain before our arrival caused many of the campsites to be flooded. I stayed in site 402, and it was one of the few with a dry spot. If you're planning a visit, be mindful of the weather, as it significantly impacts the experience.
Mitzi B
VerifiedOctober 2, 2024 • Stayed at: 432, Loop: 400s
Campsites were nice, the restaurant was good, and the camp store was well stocked.
Brittney W
VerifiedOctober 2, 2024 • Stayed at: 204, Loop: 200s
Cute little cabin, nice break from having to drag out the camping set up, our children don’t care to share beds so we threw an air mattress in the floor. It got pretty chilly outside but not at all inside the cabin. We didn’t have any external heat source so I guess it was just really well insulated and our body heat kept it warm in there. We enjoyed the stay.
I will notate that the parking area for this particular cabin was very small we barely were able to squeeze our Highlander in but it fit. I would suggest paying close attention to the listed specs for your vehicle in each cabin when choosing a cabin
Location Headwaters Campground at Flagg Ranch
Address:
1 Grassy Lake Road
Moran, WY, 83013
United States
The address for Headwaters at Flagg Ranch is located below; however, due to this property's remote location, GPS cannot always be relied on.
100 Grassy Lake Rd.
Moran, WY 83013
(Two miles south of the south gate of Yellowstone)
From Yellowstone:
Follow the signage to the South gate of Yellowstone - about 40 miles from Old Faithful.
After exiting the south gate, Headwaters at Flagg Ranch will be just 2 miles South on the right side of the road.
From Jackson, WY:
Head North from Jackson on US 191/89.
Turn left to continue on US 191/89 at the Moran Junction and enter the Grand Teton National Park through the Moran entrance.
Continue straight through the Jackson Lake junction for another 21 miles.
Headwaters at Flagg Ranch will be located on the left side of the road.
As you pull into the property, the lodge will be located on your right and the campground will be on the left.
Please note Grassy Lake Road is a dirt and gravel road that leads to Ashton, Idaho. Four-wheel drive is strongly encouraged on this narrow single-lane road. It is not recommended for trailer traffic or large vehicles.
Latitude & Longitude: 44.1068 / -110.666
Elevation: 2088 feet
Policies & Rules
| Category | About |
|---|---|
| General |
The maximum stay permitted at the Flagg Ranch Campground is 14 nights, and the maximum cumulative stay between all park campgrounds is 30 nights. Changing Reservations: • If a visitor wants to switch dates that are entirely outside of the original reservation dates, there is a $10 change fee.
Deposits:
Cancellations:
Late Cancellations or Cancellations within the Cut-off Window:
No-Shows:
Early Departures:
Refunds:
Emergency Closures:
|
Warnings & Advisories
Warning
GeneralSummer Update: Enhancing our campground for youOur campground is getting an upgrade! A significant, multi-year construction project to enhance utility infrastructure will be occurring within the campground this summer. To minimize disruption to the campground experience, noise creating construction activities will be limited to 9am to 6pm. Please note that our laundry facilities will also have reduced availability during this project. We appreciate your patience as we improve your experience for seasons to come and cannot wait to welcome you this summer!