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
Sheila M
VerifiedJuly 2, 2024 • Stayed at: 207, Loop: 200s
Excellent location for enjoying both parks. Friendly staff, good facilities. Cabins are very basic, but that worked for us, and they are clean and tidy. We enjoyed it very much.
Rebecca B
VerifiedJuly 2, 2024 • Stayed at: 423, Loop: 400s
Amazing!!
Roger V
VerifiedJuly 2, 2024 • Stayed at: 320, Loop: 300s
We loved our experience at Flag Ranch. The location at the northern end of the park allowed us to easily access all the other areas while being more remote and less congested.
Michael E
VerifiedJuly 1, 2024 • Stayed at: 103, Loop: 100s
Cabin was new, clean and well maintained. Staff was super nice. Showers were great! Mattresses are a LITTLE thin but manageable.
Heather K
VerifiedJune 16, 2024 • Stayed at: 710, Loop: 700s
Sites were closer together than other campsites that I have been to, lots of mosquitos that were quite pesky. Other than that, lovely campsite, great facilities, clean showers, space to do dishes.
Yuliya N
VerifiedJune 13, 2024 • Stayed at: 105, Loop: 100s
We loved our stay! This campground is perfectly nested between Yellowstone and Grand Tetons. The rustic cabin was clean, simple, and a great place to stay. A bear did visit the campsite during our stay so being in a wooden “box” felt much safer than a tent. Women’s bathroom was always clean with about 6 restroom stalls and 5 shower stalls with hot water. We visited first week of June.
Stacy F
VerifiedJune 12, 2024 • Stayed at: 423, Loop: 400s
We stayed a few days here to visit Grand Tetons and it was great. Very nice showers and bathrooms. Great campground. Would definitely recommend.
Emma V
VerifiedJune 10, 2024 • Stayed at: 414, Loop: 400s
I have AT&T and had excellent service throughout the campsite. The site has nice bathrooms and showers with warm water and are available to all staying there. They have a very nice lodge with a gas station, restaurant and gift shop. We found ourself with a tent full of water due to rain on our last night of the stay. We went to the front desk and Gauge was very kind and very quickly got us a cabin free of charge. He was so professional and kind to us, we are so grateful for him and that made our already excellent stay that much better.
Kyle E
VerifiedJune 5, 2024 • Stayed at: 403, Loop: 400s
Great campground for visiting both Grand Teton and Yellowstone. The camp spots can be a little close but most people are gone most of the day seeing the parks. Yellowstone gate is only two miles up the road.
Anna K
VerifiedJune 4, 2024 • Stayed at: 105, Loop: 100s
We had a great stay in one of the cabins, highly recommend. One thing to note, if you arrive after hours, the staff will put the key to your cabin in an envelope labeled with your last name, and leave that pinned outside the office (near the laundry). If it's dark when you arrive, it may be hard to find.
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!