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
Mary H
VerifiedAugust 1, 2026 • Stayed at: 318, Loop: 300s
Tent sites are tucked at the ends of rows where campers can’t fit, which means they the sites are small and somewhat exposed and loud. The campground itself is pretty nice — it was great to have access to a shower. But the site was far from facilities.
Andrew B
VerifiedJuly 31, 2026 • Stayed at: 507, Loop: 500s
We would stay here again without hesitation. For as busy of a place as it is, it’s quiet at night. Nice general store close by. Check in was fast and easy. Every staff person i dealt with was helpful and friendly. The only reason I’m not giving 5 stars is the positioning of the sewer hookups aren’t ideal. They stick up out of the ground too far. We got lucky at our site but I saw some that looked like the sewer drain was actually uphill from the camper and people had to use storage totes to support their hoses. I wouldn’t let that deter me from staying here again though and it looks like they are making improvements so maybe that’ll get fixed. Overall nice place and great location!
Mary T
VerifiedJuly 29, 2026 • Stayed at: 527, Loop: 500s
Beautiful site with great showers in between Yellowstone & Grand Tetons
James V
VerifiedJuly 28, 2026 • Stayed at: 304, Loop: 300s
The staff is AMAZING. They are so helpful and the facilities are very organized and clean.
Blake W
VerifiedJuly 28, 2026 • Stayed at: 516, Loop: 500s
We had a great stay, the RV sites were nicely spaced so we weren’t right on top of our neighbors sites, it can get pretty dusty when others don’t follow the posted speed limit and in the evenings we pretty much got smoked out from others campfires, but you can’t control the way the breeze blows. We stayed here as a base camp for exploring Yellowstone which works, just be prepared to drive 1 to 2 hours each way every day when visiting the different sites! We would definitely consider staying here again if you can’t get reservations inside the park.
Michael M
VerifiedJuly 27, 2026 • Stayed at: 701, Loop: 700s
Showers were shut down one day. And they wouldn't turn them on in the other half of the campground that was closed. Other than that. Quiet, fun and great spot between the Tetons and Yellowstone.
Robert E
VerifiedJuly 26, 2026 • Stayed at: 702, Loop: 700s
Perfect location between Grand Teton and Yosemite NPs. Excellent amenities including shower store and restaurant. Loved it
Laura M
VerifiedJuly 25, 2026 • Stayed at: 709, Loop: 700s
Great facilities, very nice and friendly people, clean cabin, lovely grounds. Can't wait to come back!
Lynn A
VerifiedJuly 25, 2026 • Stayed at: 704, Loop: 700s
We had such a great stay here. Location was perfect for exploring both parks ! The campground was quiet and clean . Wooded enough for shade , Lots of washers and dryers too !
We will definitely be back ! Thanks !
Carlyle E
VerifiedJuly 25, 2026 • Stayed at: 324, Loop: 300s
We had tent site 324. Accommodated our group of 4 well. Clean restrooms, hot showers, excellent location to see 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
