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
-
General Store
-
Pet Friendly
-
Potable Water
-
Restaurant
-
Showers
-
Propane
Seasonal information
2026 Season availability
Sites & Availability
165 Sites Available
No sites found matching your criteria.
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.
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
David B
VerifiedSeptember 11, 2025 • Stayed at: 708, Loop: 700s
It would be very nice addition to the campground for tent campers to have communal water spigots available and a covered tank to dispose of wash water. It is difficult to wash dishes and keep smell at a minimum to dissuade hungry bears with carried water only.
Michael S
VerifiedSeptember 11, 2025 • Stayed at: 313, Loop: 300s
Love this campground! We like to go there every year. It's close to both Yellowstone and Teton National parks, it's nestled in the pines, the area clean and well maintained and so are the bathrooms and showers, and the staff is so friendly. Can't wait to go again!
Patrick B
VerifiedSeptember 10, 2025 • Stayed at: 416, Loop: 400s
Stayed in Eloop great location for most of park big spots! Electric good and worries!
Jason H
VerifiedSeptember 9, 2025 • Stayed at: 513, Loop: 500s
Decent campground. For the money paid, sites should have better drainage. Standing water and mud. No hot water in men’s shower. Coin laundry convenient but expensive.
olivia r
VerifiedSeptember 8, 2025 • Stayed at: 615, Loop: 600s
excellent campground in an excellent location! as a tent camper i am always weary of mega campgrounds like these where most sites are rv’s and generators can easily take over the atmosphere, but that was not the case here! the “no generator” hours were actually followed :)
staff were super helpful upon check-in, bathrooms and showers were super clean with warm water, dish washing station, bear boxes, and picnic tables were all in perfect working order. i did not use the laundry room or visit the camp store but it was a nice option to have. the campground has some nice little trails as well. my only regret is that i didn’t stay here longer, it’s the perfect spot between yellowstone and grand tetons
Craig R
VerifiedSeptember 6, 2025 • Stayed at: 602, Loop: 600s
Clean comfortable cabin, park location is perfect, Bathroom was clean, showers were hot..
Milan S
VerifiedSeptember 5, 2025 • Stayed at: 520, Loop: 500s
Small campsite for tent camping. The sites are at the end of each road and there is a lot of traffic and dust. This campground is well setup for trailers and RV's. Would suggest if your are staying for an extended period of time, you rent one of their cabins.
There are signs that state to drive slow. The employees in their golf carts fly through the campsites, stirring up dust.
The employees need to abide by the rules of the campsite. It was very annoying that they did not follow the rules posted.
Dinner at the lodge was quite nice. The atmosphere was great and the staff were accommodating.
Location was great for visiting Yellowstone and Jackson Hole/Grand Tetons and the lakes.
Lynn M
VerifiedSeptember 5, 2025 • Stayed at: 527, Loop: 500s
I think this classifies as “glamping” with stellar facilities and amenities
SHERILYN F
VerifiedSeptember 5, 2025 • Stayed at: 619, Loop: 600s
We had a great time at Headwaters at Flagg Ranch.
The scenary was amazing, the store and lodge were so nice and very convenient location for exploring. Only about 7 miles to Yellowstone south entrance.
It rained the entire time we were there but it still was great and we can’t wait to go back
If you’re coming from Idaho check your map so you don’t get stuck on the dirt road it takes you on. We made it but it was scary.
Can’t wait to go back, just a magical place in nature!
Sarah R
VerifiedSeptember 5, 2025 • Stayed at: 325, Loop: 300s
N
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!