Shelby G
VerifiedJuly 13, 2023 Stayed at: 214, Loop: 200s
Facilities were always clean and the whole property was very well maintained. All of the staff were very nice and accommodating!
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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 2457 reviews
July 13, 2023 Stayed at: 214, Loop: 200s
Facilities were always clean and the whole property was very well maintained. All of the staff were very nice and accommodating!
Helpful
July 13, 2023 Stayed at: 214, Loop: 200s
Facilities were always clean and the whole property was very well maintained. All of the staff were very nice and accommodating!
Helpful
July 13, 2023 Stayed at: 214, Loop: 200s
Facilities were always clean and the whole property was very well maintained. All of the staff were very nice and accommodating!
Helpful
July 11, 2023 Stayed at: 404, Loop: 400s
Overall, I thought that the price was high for the RV site. I also did not like that they did not have campfire wood available to purchase the two days that we were there. I would have brought some from home or purchased it elsewhere on the way if I were to know ahead of time.
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July 11, 2023 Stayed at: 404, Loop: 400s
Overall, I thought that the price was high for the RV site. I also did not like that they did not have campfire wood available to purchase the two days that we were there. I would have brought some from home or purchased it elsewhere on the way if I were to know ahead of time.
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July 11, 2023 Stayed at: 404, Loop: 400s
Overall, I thought that the price was high for the RV site. I also did not like that they did not have campfire wood available to purchase the two days that we were there. I would have brought some from home or purchased it elsewhere on the way if I were to know ahead of time.
Helpful
July 11, 2023 Stayed at: 404, Loop: 400s
Overall, I thought that the price was high for the RV site. I also did not like that they did not have campfire wood available to purchase the two days that we were there. I would have brought some from home or purchased it elsewhere on the way if I were to know ahead of time.
Helpful
July 10, 2023 Stayed at: 528, Loop: 500s
Convenient location to Teton and Yellowstone South entrance. We stayed 6 nights and enjoyed the quiet of our spot (528). We didn’t use the showers but the bathrooms were maintained as expected when we did use them. It was convenient having a gas station and small store at the campground. They didn’t have any firewood to buy so have a backup plan or you can take any dead fallen wood at the campground. They also have a restaurant but we didn’t use it. We have AT&T and had no issue with cell service. Wi-fi is only available at the lodge. The sites were as expected and for those that want gravel, stay at a KOA. We did not feel crammed at all.
What would keep me from booking here again is the mosquitos. They were unbearable and even though we doused ourselves in mosquito spray we couldn’t stand to be outside any time of day. Everywhere else we went in the park, mosquito’s were not an issue.
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July 10, 2023 Stayed at: 528, Loop: 500s
Convenient location to Teton and Yellowstone South entrance. We stayed 6 nights and enjoyed the quiet of our spot (528). We didn’t use the showers but the bathrooms were maintained as expected when we did use them. It was convenient having a gas station and small store at the campground. They didn’t have any firewood to buy so have a backup plan or you can take any dead fallen wood at the campground. They also have a restaurant but we didn’t use it. We have AT&T and had no issue with cell service. Wi-fi is only available at the lodge. The sites were as expected and for those that want gravel, stay at a KOA. We did not feel crammed at all.
What would keep me from booking here again is the mosquitos. They were unbearable and even though we doused ourselves in mosquito spray we couldn’t stand to be outside any time of day. Everywhere else we went in the park, mosquito’s were not an issue.
Helpful
July 10, 2023 Stayed at: 528, Loop: 500s
Convenient location to Teton and Yellowstone South entrance. We stayed 6 nights and enjoyed the quiet of our spot (528). We didn’t use the showers but the bathrooms were maintained as expected when we did use them. It was convenient having a gas station and small store at the campground. They didn’t have any firewood to buy so have a backup plan or you can take any dead fallen wood at the campground. They also have a restaurant but we didn’t use it. We have AT&T and had no issue with cell service. Wi-fi is only available at the lodge. The sites were as expected and for those that want gravel, stay at a KOA. We did not feel crammed at all.
What would keep me from booking here again is the mosquitos. They were unbearable and even though we doused ourselves in mosquito spray we couldn’t stand to be outside any time of day. Everywhere else we went in the park, mosquito’s were not an issue.
Helpful
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