Stephanie S
VerifiedSeptember 18, 2026 Stayed at: 514, Loop: 500s
Perfect spot between Yellowstone and Grand Teton. Clean, warm bathrooms with several shower stalls.
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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
September 18, 2026 Stayed at: 514, Loop: 500s
Perfect spot between Yellowstone and Grand Teton. Clean, warm bathrooms with several shower stalls.
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September 18, 2026 Stayed at: 302, Loop: 300s
The campsite had everything we needed for a comfortable stay. We rented a campervan for the week, and the facilities were all clean and a life saver. Convenience store, gas station & restaurants made day trips easy to both Yellowstone and the Grand Tetons. Food is immaculate in the restaurant. Good cell service (verizon). Would highly recommend.
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September 20, 2026 Stayed at: 303, Loop: 300s
A centrally located campground between the Grand Tetons and Yellowstone National Parks. Well sized campsites with hookups. The Park ranger very informative and it was great having a restaurant in the lodge and well stocked gift shop.
We enjoyed our stay.
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September 22, 2026 Stayed at: 503, Loop: 500s
Loved how the campsites were staggered a bit so you weren't on top of each other. Very quiet and the sites were really quite level making it easier. The staff at the main lodge were super friendly and helpful.
We fell in love with the Tetons area, and everywhere we went was breathtaking.
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September 22, 2026 Stayed at: 106, Loop: 100s
Campground was great. A lot of other campers around, but there was good space in between each site. We stayed in a non-electric cabin for the week and were really surprised at how nice they were. They had plenty of room for a family of three and seemed clean before our stay. Only negative would be that airflow isn’t that great, but it was cold on our stay and there is a window that can be opened which helps. Would bring a battery fan next time. We loved that they had showers and bathrooms as well, but is a decent little walk from cabin areas, which isn’t to helpful if you need to use the restroom at night, but you can get creative. Bathroom/shower areas were clean as well. Overall, we enjoyed our stay at the campground and the cabin, and would definitely do it again.
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September 23, 2026 Stayed at: 107, Loop: 100s
We rented a cabin at the ranch. As we pulled into the yard of our home for three days, a huge RV was parked in the adjacent spot and its generator was running. It ran all day. So much for a quiet, woodsy escape. The occupants (who only exited the box for a few minutes) were considerate; they turned the generator off for the night after we asked. They said the slot next to us was not designed for any camper (certainly not one as big as a whale). But this family was desperate for a place, so they were allowed into the non-camper area. The camping experience would hav been better for us if Flagg Ranch adhered to its zoning.
And now for the good part! All employees of the ranch were kind, helpful, even jovial and personable. We praise them!
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September 24, 2026 Stayed at: 311, Loop: 300s
Dusty, dry,n’ nasty. The laundry room is abysmal, the washers smelled of mold. My clothes were disgusting after using the laundry and it was 5.25 for a washer. I’m at Glacier now and it’s 2.25 without the mold smell. There was no enforcement of bear safety rules. My neighbor left his grill out and his outside fridge for 3 days! The trash by the restroom was overflowing. It most definitely did NOTHING to keep the bears away from camp. Flagg Ranch and the NPS could learn a lot from the way Canadians take care of their National and Provincial Parks. (The rangers would take the offending items if they are left unattended.) The ONLY good thing was the restroom and showers. Otherwise it’s a dump you pay a lot of money to stay at. Yellowstone is the biggest waste of time and money. I don’t recommend Flagg Ranch or this park.
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September 24, 2026 Stayed at: 310, Loop: 300s
For it being the most expensive place we stayed on our 16 day trip I expected more. The site was just ok. No privacy. The laundryroom and showers needed some cleaning. The restaurant was short handed so we left and didn't eat there.
So I wouldn't reccommend it because we paid to much for what we got.
Sorry!
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September 24, 2026 Stayed at: 304, Loop: 300s
Nice full-hookup campground, quiet, and good space between sites.
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September 25, 2026 Stayed at: 704, Loop: 700s
Do not pass this campground by, outstanding maintenance, clean toilets water location thorough out campsite easy access to grounds and river unbelievable wildlife in camp, deer, otters birds and short drive to a nightly Elk gathering
Every camper was family helpful and respectful of quiet times and your camp we have already booked for next year
Great job by the entire staff well done
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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