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!
Sites & Rates
Average nightly rates165 total sites · $107.59 avg/night
RV Sites
94 sites
$125/night
average
Tent Sites
33 sites
$61/night
average
Cabins
38 sites
$105/night
average
About Headwaters Campground at Flagg Ranch
Number of accommodations: 165
Seasonal information
2026 Season availability
Campground Amenities
Most popular amenities
General Store
Pet friendly
Showers
Water and Hygiene
- Potable Water
- Showers
On Site Services
- General Store
- Restaurant
- Propane
Pets and Policies
- Pet friendly
Report Incorrect Information
Help us improve by reporting any incorrect amenity information for Headwaters Campground at Flagg Ranch.
Rates, Sites & Availability
165 Sites Available
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Site Details
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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 (2350)
What Guests Are Saying
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.
What Guests Are Saying
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.
Review Summary
Nicholas C
VerifiedJuly 14, 2026 • Stayed at: 513, Loop: 500s
Check in was quick and efficient. The site was easy to find with the map provided. Restrooms were clean and there was enough capacity for multiple people.
Brandon M
VerifiedJuly 14, 2026 • Stayed at: 413, Loop: 400s
Fantastic campaite
Anika W
July 13, 2026
We got there late (10pm) as the BLM sites we hoped to camp at were all full. They charged us almost $70 to have our camper parked at a site (no hookups or water OR electric) for 8 hours. The parking lot was huge and empty, stunk we had to pay $70 for a crammed in site we didn’t even use, and they wouldn’t just let us sleep a few hours overnight in the huge empty parking lot there… the full hookup RV sites were almost $200 a night, which just seems criminal to me
Joan M
VerifiedJuly 13, 2026 • Stayed at: 416, Loop: 400s
Perfect location if you plan to visit Yellowstone and Grand Teton. Very clean bathrooms, lots of shade, and nice to have the laundry and lodge within walking distance. Would highly recommend!!
Timothy R
VerifiedJuly 13, 2026 • Stayed at: 525, Loop: 500s
This was a great place to stay to get to Yellowstone and Grand Teton. There is a lot of driving involved involved no matter what you do but this seemed like a good compromise and worked out well for our family. We spent alternating days in Yellowstone and Grand Teton over a 5 day trip and were able to hit all the highlights and some extras. It was nice that this park has full hook-ups, obviously you pay for it though. The bathroom/shower house was one of the best we've been to at a State or National Park but it stayed busy. I wouldn't want to stay in most of the sites in a tent, including tent sites, but a travel trailer is great.
Edward C
VerifiedJuly 13, 2026 • Stayed at: 425, Loop: 400s
Great location for visiting both Yellowstone and the Grand Tetons. The park is well maintained. Has all of the amenities, clean bathrooms and laundry room. We will definitely stay here next year.
Karolina T
VerifiedJuly 12, 2026 • Stayed at: 525, Loop: 500s
The campground was ok, not much to do. The Lodge was nice and we had a nice dinner
Alina N
VerifiedJuly 11, 2026 • Stayed at: 301, Loop: 300s
Great campground it’s self but a lot of dust at this exact spot. Because it’s right next to a main pathway people take to drive in and out. But the campsite it’s self was great
Melanie M
VerifiedJuly 11, 2026 • Stayed at: 213, Loop: 200s
Stayed in the camper cabin and it was a wonderful experience. The cabin was clean and the lodge staff was very nice and helpful.
Laurie G
VerifiedJuly 11, 2026 • Stayed at: 307, Loop: 300s
Clean, quiet, and convenient for visiting both the Tetons and Yellowstone.
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.
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.
Elevation: 2088 feet
25 mi drive to downtown Moran (about 36 min)
Policies & Rules
Arrival & departure
Check out time
11AM
Cancellation policy
- Reservation fees are non-refundable. For campsites, cabins, lookouts, yurts, group sites, and similar stays, we charge a reservation service fee of $8.
- Standard cancellations usually have a $10 cancellation fee. Customers can generally cancel before the check-in date online.
- Late cancellation rules differ by stay type.
- Individual campsites: cancelling after 12:00am local time the day before arrival usually means a $10 cancellation fee plus forfeiting the first night's fee.
- Cabins, lookouts, and yurts: cancelling less than 14 days before arrival usually means a $10 cancellation fee plus forfeiting the first night's fee.
- One-night reservations: a late cancellation usually forfeits the full amount paid, up to the total original reservation cost.
- Modifications are allowed before the cut-off window, but fees depend on the change. Changing to dates completely outside the original reservation dates may trigger a $10 change fee. Extending or shortening a stay that still includes original dates usually has no change fee, though refunds may depend on timing and facility rules. Switching to the same type of campsite for the same dates usually has no change fee, but price differences are charged or refunded.
- Early departures may or may not be refunded. At certain facilities, partial refunds may be possible if staff can mark the site available for other visitors. No refund is given for a night if the early departure is requested after that day's check-out time.
- Security deposits are separate. Security deposits may be refunded to the original payment method if the facility is left in acceptable condition, as determined by the property.
Cancellation policy
- Emergency closures will result in a full refund and notifications sent to the visitor.
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!
Nearby Campgrounds
Nearby destinations
Last updated: August 24, 2026
