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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No available sites
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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
Barbara Z
VerifiedJune 28, 2025 • Stayed at: 328, Loop: 300s
Camp among the trees! Pull through full hook up site! Close to both Yellowstone and the Grand Tetons! They do have fire rings, but the wood was a bit wet the first night, was hard to keep it burning! Very nice staff members. The restaurant at the general store was fantastic!
Charles D
VerifiedJune 28, 2025 • Stayed at: 326, Loop: 300s
Staff was very accommodating. I have a large motorhome and the spot I got was good but I can see where it would be challenging for others
Tarry C
VerifiedJune 27, 2025 • Stayed at: 317, Loop: 300s
The campground was great. Very clean and plenty of space. The campground staff were very friendly and helpful.
Shelbie M
VerifiedJune 27, 2025 • Stayed at: 520, Loop: 500s
First things first the people at the counter were all friendly and very informative when it came to bear safety. The showers were nice and clean & the water pressure was great with hot water. We used the convenient store which thankfully had bug spray & energy drinks after a long night with little kids in a tent. Overall great experience and would stay there again.
Barbara Z
VerifiedJune 27, 2025 • Stayed at: 328, Loop: 300s
The campground was very close to Yellowstone and the Grand Tetons!! Staff members were very helpful!! The restaurant in the general store was excellent!
Renee M
VerifiedJune 26, 2025 • Stayed at: 108, Loop: 100s
This campsite is a perfect location between Tetons and Yellowstone. The shelter and facilities are well kept and very clean. Lots of conveniences available.
Bradley W
VerifiedJune 26, 2025 • Stayed at: 111, Loop: 100s
All in all a nice place to stay. There is a gas station and a small camp store near. The restaurant was fantastic. Shower must’ve been ok because I don’t remember it. Cabin had no power. Free camp spots a few miles down the road, FCFS.
Kristine S
VerifiedJune 25, 2025 • Stayed at: 522, Loop: 500s
Rangers were friendly and bathrooms and showers were clean! There are a lot of mosquitoes, so if you are staying in the summer, bring bug spray!
Mal R
VerifiedJune 25, 2025 • Stayed at: 515, Loop: 500s
Nice wooded space. A bit low for tank drainage. Mosquitoes were not cooperative!
Christine W
VerifiedJune 24, 2025 • Stayed at: 701, Loop: 700s
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!