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
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General Store
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Pet Friendly
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Potable Water
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Restaurant
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Showers
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Propane
Seasonal information
2026 Season availability
Sites & Availability
165 Sites Available
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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
Andy M
VerifiedJuly 26, 2025 • Stayed at: 302, Loop: 300s
The spaces are plenty big, the facilities well kept. Do carry a threaded insert for the dump hookup as it's a bit high and horizontal. Take a walk to the river or the amphitheater. The views are great. It' very easy access to the south Yellowstone entrance and just a bit further to Grand Teton. If you want to swim or paddle I recommend Leeks Marina. Park and go to the left. The beach is gravel but nice. Views are stellar and the crowds? Well, there are none.
Kathy R
VerifiedJuly 25, 2025 • Stayed at: 327, Loop: 300s
Absolutely amazing campground, so close to fuel and shopping without fighting the crowds at Jenny lake. Only reason I didn’t give it 5 stars is we had VERY loud neighbors, it takes nothing away from the campground but staff did nothing to enforce the rules.
Wendy G
VerifiedJuly 24, 2025 • Stayed at: 208, Loop: 200s
What a great campsite. The cabin was better than I thought. And the bathrooms were divine :-) Plenty of toilets. And the showers had both a dry and wet area! Thank you.
KERSTIN S
VerifiedJuly 23, 2025 • Stayed at: 106, Loop: 100s
We stayed at one of the rustic cabins. It was nicer than I expected and quite warm and snug. It had a double bunk bed, a desk/table with two chairs and a small nightstand with drawers. It locks, so you can leave your stuff while you're at the parks. The bathrooms were clean and well kept
Elizabeth W
VerifiedJuly 23, 2025 • Stayed at: 713, Loop: 700s
Camper cabin was lovely, campground is big but nice. Nice to have showers.
Eric G
VerifiedJuly 22, 2025 • Stayed at: 315, Loop: 300s
As others have noted, very dusty here. Men’s & ladies bathrooms were closed on consecutive days. No explanation given for men’s closing. Great location for the two national parks. Good restaurant in lodge. Sites fairly close together but not bad.
John L
VerifiedJuly 21, 2025 • Stayed at: 530, Loop: 500s
Campground was very dusty and in need of gravel to keep the dust down. The campsites were too close together. One of 2 of the bathrooms was closed while we were there.
The bathrooms were clean.
Tracy L
VerifiedJuly 21, 2025 • Stayed at: 411, Loop: 400s
This was a nice campground near the Grand Tetons and Yellowstone. It is full hook up and there is very good cell service there if you need that.
Samantha G
VerifiedJuly 21, 2025 • Stayed at: 214, Loop: 200s
Easily accessible drinking water and toilets, but no place to wash dishes. The ground was pretty hard, and staking the tent required the use of rocks. There was plenty of shade, but being so close to the river meant lots of bugs. It's outside the actual park but very close by car to the visitor center and Jenny Lake.
Lola S
VerifiedJuly 20, 2025 • Stayed at: 415, Loop: 400s
Nice spot! Easy to explore the south loop of Yellowstone and Tetons! Showers were clean but aged. Staff friendly.
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!