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
mei x
VerifiedOctober 7, 2023 • Stayed at: 106, Loop: 100s
The cabin was clean. The bed was nice. The table lamp was not bright enough. Luckily we brought our own lamp.
Jack H
VerifiedOctober 7, 2023 • Stayed at: 608, Loop: 600s
This is a nice campground, and the bathhouse was clean and kept very nice. It was quiet and neighbors were friendly. The site I had was challenging for drainage and leveling our trailer. When the small trailer I had was moved forward far enough to permit good drainage from holding tanks, I was too far from the water hookup. So, I had to back up to reach the water hookup requiring me to coax the contents of the holding tanks into the sewer hookup when we left. That was annoying. Other than that, the folks that operate it were friendly and the area is gorgeous.
Jacqueline D
VerifiedOctober 7, 2023 • Stayed at: 407, Loop: 400s
Ummm
Albert K
VerifiedOctober 5, 2023 • Stayed at: 214, Loop: 200s
We were tired and it was getting dark, so we needed a place to stay. Campsite were fully booked, so we had to take a cabin. So far so good, but the price being asked was outragous: over 100$ for a mattress with a roof over und sonme cardboards around it. No linen, no blanket, no water, nothing else!
John P
VerifiedOctober 4, 2023 • Stayed at: 526, Loop: 500s
This was a very nice campsite. The camp host who checked us in was very helpful and gave us clear directions to our campsite. It was a great place with easy access to stop between seeing Yellowstone and the Tetons.
Lisa S
VerifiedOctober 3, 2023 • Stayed at: 511, Loop: 500s
We made our reservation on-line entering the length of our 5th wheel trailer. When we arrived, the space was very narrow due to existing trees. We had to maneuver the trailer very close to the trees and align it toward the front of the space to allow for the steps to come down in between trees and the slides to come out on the other side. The door would not fully open and we had to disconnect the tow vehicle and park it behind the trailer. My recommendation would be to list the width of the pull through sites or remove some trees to accomodate slides for the larger spaces knowing that most of the larger rigs have slide outs.
Tom S
VerifiedOctober 2, 2023 • Stayed at: 428, Loop: 400s
They put us at a site with 5" of standing water on the entire site. It was very expensive for what you get. Campground was poorly managed. Front desk customer service was not helpful nor understanding. Although it was raining upon our arrival, after 8 hours of no rain, there was still standing water at the site. We felt there should have been a partial refund, we know they can't control the weather, but the site conditions were horrible.
Libby F
VerifiedOctober 2, 2023 • Stayed at: 430, Loop: 400s
Roomy campsites, clean bathrooms. A few sink/shower drains were clogged so not sure how often they are services. Friendly staff. The nearby restaurant had excellent food, although pricey. But if you want to treat yourself while you rough it, that's the place to go. Good proximity to south Yellowstone and Grand Tetons. Will definitely stay there again.
Rebecca S
VerifiedOctober 1, 2023 • Stayed at: 519, Loop: 500s
I made our reservations 5 mos in advance and still had to move 3 sites to get 8 days, reserve early! We are 45' with 4 slides, we fit in all the sites that we had, but even tho they were rated as pull thrus, I had to back out of 2 sites, it was evident by the scrapping on the trees that I was not going to be able to pull out.
All in all was a good experience, centrally located, not cheap but as I've been told
" this is expensive country"
Steve J
VerifiedOctober 1, 2023 • Stayed at: 525, Loop: 500s
Way too much money >$100 for a sub par camping experience. They have a captive audience and take advantage.
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!