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
Rebecca N
VerifiedJuly 28, 2023 • Stayed at: 433, Loop: 400s
Great location for the Grand Tetons, and Yellowstone parks. We only had trouble reaching the north side of Yellowstone in a timely manner.
Roberta G
VerifiedJuly 28, 2023 • Stayed at: 529, Loop: 500s
The location between grand Teton Park, and Yellowstone was outstanding. Being along the snake river was awesome. Quite a few mosquitoes due to the time of the year I would highly recommend the horseback riding, the guides for fun and very knowledgeable about the surrounding. Nice trees in between sites with full hookups but the road are little dusty. The bathrooms were clean and plentiful. The store had a good supply of necessities and the restaurant meal was excellent. We had a mechanical issue, and the maintenance person was extremely helpful in assisting us. I would recommend Headwaters
Jeanie J
VerifiedJuly 27, 2023 • Stayed at: 412, Loop: 400s
Nice quiet location. Campsites have ample room. Very dusty. Everytime a car drives by dust cloud blows into your camp. There is a sign that says 10 mph but even the old men on golf carts that work there do not obey the signs. They were the worst zipping on by creating a dust storm.
Paul J
VerifiedJuly 27, 2023 • Stayed at: 411, Loop: 400s
We were at rv sites 412 and 411 July 14- 20th 2023.
We pulled our trailers in so the two front doors faced each other.
Headwaters is So much better than Colter Bay rv park.
Colter Bay rv park is way to crowded like the big Cities.
Headwaters RV a
Park is very quiet and no large crowds, and in a country setting in the middle of Yellowstone and Jackson Hole, so nice.
The store/ gas station was very nice to have in a short walking distance from rv sites.
The only thing headwaters could do to improve the park is to lay some gravel down on the roads to keep the dust down and Tell drivers to slow down they are not on asphalt.
Laura P
VerifiedJuly 26, 2023 • Stayed at: 202, Loop: 200s
We rented a cabin here for the night on our way south into the Tetons, and were able to park our 24’ motorhome alongside. The cabin, as you expect, is super basic - 2 full size bunks and a desk, no electricity, but it was clean. It was super convenient to have Flagg Ranch so close, and we enjoyed the restaurant there for both dinner and breakfast. They also have a nice gift shop, and a Visitor Center next door, where we collected our Junior Ranger booklets. We also took advantage of the fire ring and sat around a campfire in the evening. We would stay here again if we were passing through.
Tad M
VerifiedJuly 25, 2023 • Stayed at: 701, Loop: 700s
Very friendly and helpful staff. Clean facilities, It is outside the south gate of Yellowstone so you'll have to reenter the park every day if that is your destination. We liked it as we could go to either park depending on what we wanted to do that day.
Jenny T
VerifiedJuly 25, 2023 • Stayed at: 202, Loop: 200s
Tent cabins served our needs and enjoyed the lodge and facilities for all guests. The staff was friendly. The staff managing the horseback rides were superb and really provided an enjoyable experience. Would stay again.
Janice R
VerifiedJuly 24, 2023 • Stayed at: 502, Loop: 500s
The fire starter purchased at the store worked great.
YANLIANG Z
VerifiedJuly 24, 2023 • Stayed at: 704, Loop: 700s
nice showers and water stations
Miyeko K
VerifiedJuly 21, 2023 • Stayed at: 504, Loop: 500s
Great campground and perfect location for both Grand Teton and Yellowstone!
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!