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
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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
Julia E
July 14, 2023
I loved the cabins at Flagg Ranch. They are very basic with no electricity but had good insulation and were pretty temperature controlled for the summer (not too hot during the day or cold at night) The campground hosts were super friendly and helpful. The only thing is I wish there were more bathroom stations bc it’s a long walk in the middle of the night to the bathroom but other than that I enjoyed my stay there.
Shelby G
VerifiedJuly 13, 2023 • Stayed at: 214, Loop: 200s
Facilities were always clean and the whole property was very well maintained. All of the staff were very nice and accommodating!
David D
VerifiedJuly 11, 2023 • Stayed at: 404, Loop: 400s
Overall, I thought that the price was high for the RV site. I also did not like that they did not have campfire wood available to purchase the two days that we were there. I would have brought some from home or purchased it elsewhere on the way if I were to know ahead of time.
Katie B
VerifiedJuly 10, 2023 • Stayed at: 528, Loop: 500s
Convenient location to Teton and Yellowstone South entrance. We stayed 6 nights and enjoyed the quiet of our spot (528). We didn’t use the showers but the bathrooms were maintained as expected when we did use them. It was convenient having a gas station and small store at the campground. They didn’t have any firewood to buy so have a backup plan or you can take any dead fallen wood at the campground. They also have a restaurant but we didn’t use it. We have AT&T and had no issue with cell service. Wi-fi is only available at the lodge. The sites were as expected and for those that want gravel, stay at a KOA. We did not feel crammed at all.
What would keep me from booking here again is the mosquitos. They were unbearable and even though we doused ourselves in mosquito spray we couldn’t stand to be outside any time of day. Everywhere else we went in the park, mosquito’s were not an issue.
Sharri D
VerifiedJuly 9, 2023 • Stayed at: 406, Loop: 400s
It’s always the people that make the experience exceptional. From check in to my left stand at the campsite every one was kind, helpful, informative, and genuinely interested in my personal experience being the best. And the nice thing is that the physical property matched their enthusiasm. It’s a great place. Very natural. Gives you the real outdoor experience. Thanks so much for a wonderful time.
Pam R
VerifiedJuly 8, 2023 • Stayed at: 314, Loop: 300s
The location was north of the Tetons making for long drives to the southern portion. Had we known how convenient it was to Yellowstone, we would have stayed instead of at the Fishing Bridge. There was a store and gas station next to the campground. The sites were nestled on the trees with shade.
Theresa V
VerifiedJuly 7, 2023 • Stayed at: 110, Loop: 100s
The staff at Headwaters Campground at Flagg Ranch was outstanding. My only issue is with the upkeep of the shower building. It is in need of repairs. Sinks were clogged and toilets leaked.
Randall H
VerifiedJuly 7, 2023 • Stayed at: 428, Loop: 400s
Mosquitos where the only downside but the little units they sale at the lodge really work. Good fire pits, wood can be limited so be sure to check when you get there. Shady with a few mud holes. Restrooms and showers good.
Xiaolu H
VerifiedJuly 7, 2023 • Stayed at: 106, Loop: 100s
The location was great for exploring Grand Teton and the southern part of Yellow Stone. There was a queen bunk bed, a dresser, a table and a chair in the cabin. Very quiet. Remember to bring enough mosquito spray with you, as there were tons of giant mosquitoes flying around you in this area.
Marisol B
VerifiedJuly 7, 2023 • Stayed at: 604, Loop: 600s
We love the camping ground! Restrooms and showers are clean. The campground store and gas station are great to have for convenience.
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!