Jochen A
VerifiedAugust 17, 2025 Stayed at: 504, Loop: 500s
A very nice campground just outside south entrance of Yellowstone. We enjoyed our stay very much. Everything was clean and personnel was very nice.
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2457 reviews
Headwaters Campground at Flagg Ranch is a well-maintained facility conveniently located between Yellowstone and Grand Teton, making it an ideal base for exploring both parks. Visitors appreciated the clean amenities, friendly staff, and additional features like a gas station, store, and free showers. However, some campers noted high prices at the store and close proximity of sites, which could lead to noise and lack of privacy. Overall, many expressed a desire to return due to the campground's positive aspects.
Based on guest feedback
4.3
Based on 2457 reviews
Showing 2375 reviews
August 17, 2025 Stayed at: 504, Loop: 500s
A very nice campground just outside south entrance of Yellowstone. We enjoyed our stay very much. Everything was clean and personnel was very nice.
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August 18, 2025 Stayed at: 214, Loop: 200s
Wonderful stay! I stayed in a cabin and they really had everything I needed! I brought my own pillow and sheets, but they had a lantern in the room, wifi on the campground, laundry machines, dish washing station, etc. The camp store, restaurant, and gift shop in the lodge about 656.2 ft away was also very convenient! The cabin was very clean and the campground was very quiet.
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August 18, 2025 Stayed at: 404, Loop: 400s
Very friendly staff. Nice central location between the two parks. There is a general store across from the campground which allowed us to fuel up and get coffees.
You forfeit privacy for the convenience, as the sites are very close together. We lucked out with our site, it had more grass and trees than other sites which our pups appreciated. I will say that although the sites were too close together for my taste, this park felt like a nature wonderland compared to the two parks we stayed at within Yellowstone!
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August 18, 2025 Stayed at: 214, Loop: 200s
Wonderful stay! I stayed in a cabin and they really had everything I needed! I brought my own pillow and sheets, but they had a lantern in the room, wifi on the campground, laundry machines, dish washing station, etc. The camp store, restaurant, and gift shop in the lodge about 656.2 ft away was also very convenient! The cabin was very clean and the campground was very quiet.
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August 18, 2025 Stayed at: 404, Loop: 400s
Very friendly staff. Nice central location between the two parks. There is a general store across from the campground which allowed us to fuel up and get coffees.
You forfeit privacy for the convenience, as the sites are very close together. We lucked out with our site, it had more grass and trees than other sites which our pups appreciated. I will say that although the sites were too close together for my taste, this park felt like a nature wonderland compared to the two parks we stayed at within Yellowstone!
Helpful
August 18, 2025 Stayed at: 214, Loop: 200s
Wonderful stay! I stayed in a cabin and they really had everything I needed! I brought my own pillow and sheets, but they had a lantern in the room, wifi on the campground, laundry machines, dish washing station, etc. The camp store, restaurant, and gift shop in the lodge about 656.2 ft away was also very convenient! The cabin was very clean and the campground was very quiet.
Helpful
August 18, 2025 Stayed at: 404, Loop: 400s
Very friendly staff. Nice central location between the two parks. There is a general store across from the campground which allowed us to fuel up and get coffees.
You forfeit privacy for the convenience, as the sites are very close together. We lucked out with our site, it had more grass and trees than other sites which our pups appreciated. I will say that although the sites were too close together for my taste, this park felt like a nature wonderland compared to the two parks we stayed at within Yellowstone!
Helpful
August 18, 2025 Stayed at: 214, Loop: 200s
Wonderful stay! I stayed in a cabin and they really had everything I needed! I brought my own pillow and sheets, but they had a lantern in the room, wifi on the campground, laundry machines, dish washing station, etc. The camp store, restaurant, and gift shop in the lodge about 656.2 ft away was also very convenient! The cabin was very clean and the campground was very quiet.
Helpful
August 18, 2025 Stayed at: 404, Loop: 400s
Very friendly staff. Nice central location between the two parks. There is a general store across from the campground which allowed us to fuel up and get coffees.
You forfeit privacy for the convenience, as the sites are very close together. We lucked out with our site, it had more grass and trees than other sites which our pups appreciated. I will say that although the sites were too close together for my taste, this park felt like a nature wonderland compared to the two parks we stayed at within Yellowstone!
Helpful
August 19, 2025 Stayed at: 326, Loop: 300s
Headwaters was the perfect spot for exploring both Yellowstone and the Grand Tetons. The RV park had larger spacing so we had room for outside living plus our 40 ft trailer. Camp hosts were helpful. The lodge was close so we could walk over for anything we needed from the little store there.
Going to see moose in the early morning was a bit of a drive to Jenny Lake/Moose Pond area but was under an hour. Old Faithful was also only about an hour.
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1 Grassy Lake Road, Moran, WY 83013 United States
Elevation: 2,088 ft
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 Yellowston...
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 mi from Old Faithful.
After exiting the south gate, Headwaters at Flagg Ranch will be just 2 mi 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 mi.
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.
Headwaters Campground at Flagg Ranch is accessible via US 191/89, which connects to the Moran Junction. The campground is located approximately 2 miles south of the south gate of Yellowstone National Park.
The closest entrance is: South Entrance
Approximate drive: 2.4 mi · 4 min
The closest entrance is: Moran Entrance Station
Approximate drive: 24 mi · 41 min
Check out time
11AM
Last updated: November 4, 2026