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
Cathryn S
VerifiedSeptember 1, 2023 • Stayed at: 526, Loop: 500s
The campground is very convenient to both Grand Teton and Yellowstone National Parks. Staff was accommodating and helpful. We wanted to stay a few days, so had to move sites; they helped facilitate those moves. The lodge is just across the street, along with a gas station that has prices commensurate with prices elsewhere. Lodge offers gluten-free and vegan options in its dining room. For those with EMH, however, the cell signals were strong enough to cause reactions. Altitude is a consideration, too.
Kristina K
VerifiedAugust 31, 2023 • Stayed at: 419, Loop: 400s
Gepflegter Platz, den Preis können wir aber nicht nachvollziehen.
William M
VerifiedAugust 31, 2023 • Stayed at: 628, Loop: 600s
Staff very friendly, good cell service the only complaint i have is the dirt roads and the dust from traffic in the campground
Paul D
VerifiedAugust 31, 2023 • Stayed at: 430, Loop: 400s
The location and staff were great. The roads around the RV areas were very potholed and difficult to traverse. The restaurant associated with the area was very good. I would highly recommend eating on the property.
John F
VerifiedAugust 30, 2023 • Stayed at: 523, Loop: 500s
Being right outside both Yellowstone and the Grand Teton National Parks made this a convenient location for our first visit to either park. Hosts are great, and everything you need is right there including a Phillips 66 gas station. We did get a light rain all three days we were there so our site did get a little messy being just gravel. But all in all, we had a great summer vacation.
Bryden L
VerifiedAugust 30, 2023 • Stayed at: 202, Loop: 200s
We stayed in the cabins but you still have access to a (small) convenience store, gift shop, and restaurant. There’s wifi inside the lodge where you check in so if you need to check your phone you can. The bathrooms were all super clean and well maintained compared to some I’ve stayed at and theres also a laundry room where you can get drinking water. Overall it was really nice! I would definitely stay here again as it’s right in between Teton and Yellowstone which was perfect for our trip because we visited both places
Rose N
VerifiedAugust 30, 2023 • Stayed at: 605, Loop: 600s
The little cabins are cool. Bathrooms eeek.
Sam J
VerifiedAugust 29, 2023 • Stayed at: 301, Loop: 300s
Site 509 for tent was wondeful. Would return because it is in the right spot for both parks. The food was very good.
No WIFI, but good cell coverage for Verizon.
Joseph O
VerifiedAugust 29, 2023 • Stayed at: 217, Loop: 200s
Loved it the staff is so amazing
Thomas L
VerifiedAugust 28, 2023 • Stayed at: 313, Loop: 300s
Some of the campers where not as thoughtful as others, driving through the campground fast causing a lot of dust.
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!