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
Leah J
VerifiedJune 24, 2025 • Stayed at: 316, Loop: 300s
We have stayed at Headwaters Flagg Ranch RV park for years ad keep coming back. The location is perfect for visiting the southern portion of Yellowstone and Grand Teton! The campground, shop, and restaurant are well-kept and staff is friendly. Showers in the campground are clean and have good water pressure too.
Scott S
VerifiedJune 23, 2025 • Stayed at: 512, Loop: 500s
Quiet. Restrooms and showers clean.
Sam H
VerifiedJune 23, 2025 • Stayed at: 523, Loop: 500s
Our site, 523, was easily accessible - pull thru
Conveniently located to the restroom/bath house and the facility was very clean.
There was some shade, although we did not sit outside because of mosquitos. Maybe
the early season attributed to their prevalence. The camp ground is very quiet and
the staff we encountered were helpful and friendly.
The location, between the Tetons and Yellowstone proved convenient.
Miles G
VerifiedJune 23, 2025 • Stayed at: 210, Loop: 200s
Amazing time
William S
VerifiedJune 22, 2025 • Stayed at: 626, Loop: 600s
great place
Kimberlee M
VerifiedJune 22, 2025 • Stayed at: 303, Loop: 300s
We had a great experience with Headwaters Campground. We spent alot of time in the Grand Tetons and the location was perfect for seeing wildflowers and wildlife. The mosquitos were terrible but that is part of camping I guess. The laundry facilities were nice, except it was very expensive ($9/load) and the change machine was out of order. The gas and convenience store prices were all extremely high throughout the national parks which is a shame.
Jon R
VerifiedJune 22, 2025 • Stayed at: 526, Loop: 500s
We loved our camping trip at Headwaters campground while visiting both Yellowstone and Grand Teton Parks. We recommend eating at Sheffield restaurant, the food and the service was great . All the employees we encountered at the restaurant, convenience store , gift store and campground were very friendly and helpful . We booked a beautiful scenic float down the Snake River, through Jackson Lake Lodge, and our van driver and river guide were awesome. We also did the Jenny Lake boat ride and hiked to the Falls and up to Inspiration Point which was wonderful. This is the second time we have camped at Headwaters Campground at Flagg Ranch and we will definitely be back. We visited in early June and the mosquitos were numerous other than that we love it there !
Jacquelyn B
VerifiedJune 21, 2025 • Stayed at: 710, Loop: 700s
The location was perfect, the campsite was clean and well maintained, and the rangers patrolled often to ensure we were safe. I will absolutely stay here again.
Michelle P
VerifiedJune 21, 2025 • Stayed at: 610, Loop: 600s
The bathroom was really clean and I liked that there was running water and flush toilets. The campground was clean. The only con I have is that the mosquitos were terrible. I sprayed myself twice and had a citronella candle going and I was swarmed and later found I was bit up. A lot of people were inside their camper/tents, probably to escape the mosquitos. Other than the mosquitos, I had a really nice time here.
Tina C
VerifiedJune 21, 2025 • Stayed at: 527, Loop: 500s
This is our 2nd time at Headwaters and we will come again! It is perfectly located to enjoy Yellowstone & the Grand Tetons easily. The grounds are safe and well maintained, the staff is knowledgeable and friendly, the store had everything we needed, and the campsites are shaded and not too crowded so we never felt like we were on top of the people next door.
Suggestions for improvement would be:
*Fix the squeek on the campground truck - it's pretty loud when doing the rounds early and late.
*Have a RV dump station ON SITE for those of us whose trailers are not tall enough to have sufficient drop to empty our Grey&Black tanks at our campsites. (The inlet was a good 10" above ground level) We were told we could use the nearest dump at Colter Bay campground - who had no sympathy and charged us $10 to use it. Not a deal-breaker, but definitely an inconvenience.
Other than that, we loved our trip! THANK YOU
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!