Lauranne S
VerifiedOctober 5, 2025 Stayed at: 524, Loop: 500s
Perfect location for Grand Teton/Yellowstone base camp. Quiet during quiet times.
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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
October 5, 2025 Stayed at: 524, Loop: 500s
Perfect location for Grand Teton/Yellowstone base camp. Quiet during quiet times.
Helpful
October 5, 2025
The overall setting and staff are 5 stars. I’ve stayed here multiple times, and would definitely stay again.
I gave it three stars for a few reasons I see as places for easy improvements.
1 - we stayed in cabin 101 not realizing it faces the dumpsters, check-in area and main flow of all incoming traffic, which over a weekend is constant. That all devalues it. People staying there do not get the same peace and value as those in other cabins and it should be a discounted price during weekends and peak times.
Additionally, since there was no apparent campground host, guess where everyone arriving late goes? That’s right! Cabin 101!!! We were interrupted 4 separate times in one evening by people needing my to know basic campground wayfinding because signage is so minimal and there are no hosts up front in that spot.
Lastly, the hooks in Cabin 101 and in the closest bathroom all appeared to be ripped off. I hate that guests can’t keep things nice! But having those makes a big difference in functionality.
Place a host prominently up front by check in. Place user-friendly signage. Fix simple things like hooks in cabins and bathrooms. Give guests in 101 a slight discount since that stay is definitely not the same value as others.
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October 5, 2025 Stayed at: 623, Loop: 600s
Loved the location, perfect for exploring and enjoying both Yellowstone National Park and Teton National Park, the campsite was more than adequate and the facilities were clean and well maintained. I would recommend it for anyone planning on seeing both parks.
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October 5, 2025 Stayed at: 208, Loop: 200s
⭐⭐⭐⭐⭐ 5/5 — Perfect stay at Headwaters at Flagg Ranch!
We had such a wonderful time staying at Headwaters at Flagg Ranch! The location was absolutely perfect—right between Grand Teton and Yellowstone, which made exploring both parks super convenient. The mountains were stunning, the air was crisp, and we even spotted some wildlife nearby!
The campground was peaceful and quiet, with clean bathrooms and well-kept facilities. It really felt like the perfect balance of comfort and nature. This is our 3rd year here and we’ll definitely be coming back!
Helpful
October 5, 2025 Stayed at: 524, Loop: 500s
Perfect location for Grand Teton/Yellowstone base camp. Quiet during quiet times.
Helpful
October 5, 2025
The overall setting and staff are 5 stars. I’ve stayed here multiple times, and would definitely stay again.
I gave it three stars for a few reasons I see as places for easy improvements.
1 - we stayed in cabin 101 not realizing it faces the dumpsters, check-in area and main flow of all incoming traffic, which over a weekend is constant. That all devalues it. People staying there do not get the same peace and value as those in other cabins and it should be a discounted price during weekends and peak times.
Additionally, since there was no apparent campground host, guess where everyone arriving late goes? That’s right! Cabin 101!!! We were interrupted 4 separate times in one evening by people needing my to know basic campground wayfinding because signage is so minimal and there are no hosts up front in that spot.
Lastly, the hooks in Cabin 101 and in the closest bathroom all appeared to be ripped off. I hate that guests can’t keep things nice! But having those makes a big difference in functionality.
Place a host prominently up front by check in. Place user-friendly signage. Fix simple things like hooks in cabins and bathrooms. Give guests in 101 a slight discount since that stay is definitely not the same value as others.
Helpful
October 5, 2025 Stayed at: 623, Loop: 600s
Loved the location, perfect for exploring and enjoying both Yellowstone National Park and Teton National Park, the campsite was more than adequate and the facilities were clean and well maintained. I would recommend it for anyone planning on seeing both parks.
Helpful
October 5, 2025 Stayed at: 208, Loop: 200s
⭐⭐⭐⭐⭐ 5/5 — Perfect stay at Headwaters at Flagg Ranch!
We had such a wonderful time staying at Headwaters at Flagg Ranch! The location was absolutely perfect—right between Grand Teton and Yellowstone, which made exploring both parks super convenient. The mountains were stunning, the air was crisp, and we even spotted some wildlife nearby!
The campground was peaceful and quiet, with clean bathrooms and well-kept facilities. It really felt like the perfect balance of comfort and nature. This is our 3rd year here and we’ll definitely be coming back!
Helpful
October 5, 2025 Stayed at: 524, Loop: 500s
Perfect location for Grand Teton/Yellowstone base camp. Quiet during quiet times.
Helpful
October 5, 2025
The overall setting and staff are 5 stars. I’ve stayed here multiple times, and would definitely stay again.
I gave it three stars for a few reasons I see as places for easy improvements.
1 - we stayed in cabin 101 not realizing it faces the dumpsters, check-in area and main flow of all incoming traffic, which over a weekend is constant. That all devalues it. People staying there do not get the same peace and value as those in other cabins and it should be a discounted price during weekends and peak times.
Additionally, since there was no apparent campground host, guess where everyone arriving late goes? That’s right! Cabin 101!!! We were interrupted 4 separate times in one evening by people needing my to know basic campground wayfinding because signage is so minimal and there are no hosts up front in that spot.
Lastly, the hooks in Cabin 101 and in the closest bathroom all appeared to be ripped off. I hate that guests can’t keep things nice! But having those makes a big difference in functionality.
Place a host prominently up front by check in. Place user-friendly signage. Fix simple things like hooks in cabins and bathrooms. Give guests in 101 a slight discount since that stay is definitely not the same value as others.
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