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
-
General Store
-
Pet Friendly
-
Potable Water
-
Restaurant
-
Showers
-
Propane
Seasonal information
2026 Season availability
Sites & Availability
165 Sites Available
No sites found matching your criteria.
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.
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
Stephen W
VerifiedOctober 2, 2025 • Stayed at: 303, Loop: 300s
Our spot was exactly where we wanted it to be - easy to pull into with power, water, and dump facilities. The bar at the information center was a nice bonus, as was the gift shop. My only complaint would be that I considered the price for the buffet breakfast to be a little steep. Otherwise, a great place to stay; quiet with washroom and shower facilities and the convenience of fuel pumps on the doorstep! Overall, a very good experience.
Adam M
VerifiedOctober 2, 2025 • Stayed at: 409, Loop: 400s
Facilities were great. Showers were amazing. Food at the lodge was excellent.
Tent camping wasn't the best as your tent gets lit up by all the traffic. But that's a small complaint.
Scott S
VerifiedOctober 1, 2025 • Stayed at: 313, Loop: 300s
Served its purpose but was quite muddy. Being close to a convenience store next to a lodge and having diesel available was good.
Tim B
VerifiedSeptember 30, 2025 • Stayed at: 625, Loop: 600s
Great location for those of you looking to visit Grand Tetons and Yellowstone National Parks.
Bruce W
VerifiedSeptember 30, 2025 • Stayed at: 331, Loop: 300s
Staff at check-in was very friendly and helpful. The layout of the campground is nothing more than chaotic and not very well marked. I had to make several approaches to finally figure out how to get on my site. Once on the site everything worked as expected. Some gravel in the sites for parking the right on would be welcomed. I realize that you have a monopoly on campsites in the area with full hook ups, but the price charged seems awful high for the type of campground, with basically no amenities. I was surprised that the campground had WiFi, however we didn't use it as there was good cell coverage for us. Would I stay again? Yes but only because it is convenient to both Yellowstone and the Tetons, and has full hook ups. Again though the price seems a bit ridiculous.
Michael D
VerifiedSeptember 30, 2025 • Stayed at: 629, Loop: 600s
Great setup in every aspect,and a perfect location.
Sara M
VerifiedSeptember 30, 2025 • Stayed at: 425, Loop: 400s
Great campground with clean facilities
Ethan S
VerifiedSeptember 30, 2025 • Stayed at: 203, Loop: 200s
Great facilities great satff
Jeanine S
VerifiedSeptember 29, 2025 • Stayed at: 709, Loop: 700s
The Campground was more than we expected, the staff were excellent and the lodge on the property had a nice market, lounge and restaurant, gas station and all around great campground. Very nice location between Yellowstone and Grand Tetons National Park.
Jane P
VerifiedSeptember 29, 2025 • Stayed at: 614, Loop: 600s
Beautiful campground, conveniently located between Yellowstone and Grand Tetons national parks.
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!