Photo thanks to Grand Teton Lodge Company
Headwaters Campground & RV at Flagg Ranch
Full-hookup pull-through sites in the woods at Flagg Ranch, halfway between Grand Teton and Yellowstone, with showers, laundry and a lodge restaurant, and Yellowstone’s South Entrance about 5 minutes away.
John D. Rockefeller, Jr. Memorial Parkway, Wyoming · between Grand Teton and Yellowstone
Season
Jun 7–Oct 3
2026 season; 2027 opens May 14
Elevation
About 6,850 ft
Near the Snake River and Polecat Creek
Hookups
Full hookups
Water, sewer and 20/30/50 amp
Big rigs
Up to 45 ft
All RV sites are pull-throughs
Updated October 12, 2026 · Details checked against the park’s website
Between Grand Teton and Yellowstone
The Headwaters experience
Headwaters at Flagg Ranch sits in the John D. Rockefeller, Jr. Memorial Parkway, the strip of land between Grand Teton and Yellowstone. Its 97 RV sites are all full-hookup pull-throughs under lodgepole pines, with tent sites and camper cabins nearby and the lodge a short walk away.
Full hookupsWater, sewer and 20/30/50-amp electric at the 97 RV sites
Pull-throughs to 45 ftEvery RV site is a pull-through
ShowersHot showers and flush toilets in the campground
Coin laundryCoin-operated laundry on site
Lodge restaurantSheffields Restaurant & Saloon serves three meals
Store & gift shopGroceries, firewood and ice at the lodge
PropanePropane for sale at the campground office
Fire pitsFire pit with grate and a picnic table at every site
Creek & riverPolecat Creek and the Snake River are a short walk away
Pet friendlyLeashed pets welcome (not on park trails)
Camper cabins40 simple cabins for friends without an RV
Life at camp
What guests say
The campground report card
We don’t recycle other sites’ reviews, but the published scores tell a clear story: RVers like the full hookups, the quiet woods and the location for Yellowstone, and the common gripes are limited cell service and the price.
Off US-89/191/287 at Flagg Ranch
Getting there
Flagg Ranch is just off US-89/191/287, about 2 miles south of Yellowstone’s South Entrance and 15 miles north of Colter Bay.
From Grand Teton and Jackson: US-89/191/287 north past Colter Bay and Lizard Creek to Flagg Ranch, then west on Grassy Lake Road to the campgroundFrom Yellowstone: leave by the South Entrance and drive about 2 miles south on US-89/191/287
US-89/191/287 · FLAGG RANCH
Set your GPS
100 Grassy Lake Rd, Moran, WY 83013
To Yellowstone South Entrance*About 6 min
To Colter BayAbout 28 min
To Old FaithfulAbout 1 hr 15 min
To Jackson (Town Square)About 1 hr 25 min
Check in from 12 p.m., out by 11 a.m. Arriving late? Staff hold your site until check-out time the day after your arrival date.
Cell service is limited here. Download maps and reservations before you arrive; there’s a public phone in the lodge lobby.
*Drive times are from OpenStreetMap routing and are approximate; summer traffic, construction and wildlife jams can add a lot. Locator map is approximate, not for navigation.
Around Flagg Ranch
Around Flagg Ranch
Yellowstone’s geysers and Grand Teton’s lakes are both within easy reach.
Photo: National Park Service (public domain)
Old Faithful & Yellowstone
Yellowstone’s South Entrance is just north of Grand Teton, and Old Faithful is an easy day trip from the north end of the park.
Photo thanks to Zeete (CC BY-SA 4.0)
Jackson Lake Lodge
The historic lodge’s 60-foot lobby windows frame Mount Moran, and the Willow Flats overlook out back is a favorite spot for spotting moose.
Photo thanks to Watts (CC BY 2.0)
Oxbow Bend
The classic Teton photo stop: Mount Moran reflected in a slow bend of the Snake River, with moose, otters and pelicans often in view.
Photo thanks to Acroterion (CC BY-SA 4.0)
Jenny Lake
Hike or take the shuttle boat across the lake to Hidden Falls and Inspiration Point, the park’s busiest and most scenic corner.
More places to stay
Other parks worth a look
The three closest RV parks and campgrounds to Headwaters, by drive time.
Photo thanks to Grand Teton Lodge Company
Colter Bay RV Park
The only full-hookup RV park inside Grand Teton, with 112 wooded sites a short walk from Jackson Lake.
Photo thanks to Grand Teton Lodge Company
Colter Bay Campground
The big no-hookup campground in Colter Bay Village, with a free dump station and generator loops.
Photo thanks to Signal Mountain Lodge
Signal Mountain Campground
A lakeside campground on Jackson Lake with electric sites and Teton views, for rigs up to 30 ft.
Before you book
Plan your stay
Everything that decides whether Headwaters fits your rig, your dates and your budget, in one place.
Our take: full hookups and easy pull-throughs in quiet woods, with showers, laundry and a lodge next door, and Yellowstone’s South Entrance 5 minutes away. It opens later than the Grand Teton campgrounds, cell service is thin and it’s pricey, so book early and treat it as a base for both parks.
Nightly ratesRecreation.gov · 2026 season, checked Oct 12, 2026
Full-hookup RV site$125 /night
Tent site$61 /night
Camper cabin (no electric)$105 /night
Rates are per site before Recreation.gov’s reservation fee, tax and the park’s utility fee. The rate is the same all season. The whole stay is paid when you book.
Prices are subject to change at any time and may vary by date, season and availability. For the latest pricing, check the Recreation.gov listing or call (307) 543-2861.
Typical July afternoon
Flagg Ranch77°
Phoenix107°
Mountain-cool summers: 30° cooler than Phoenix in July, with nights near freezing early and late.
Is it right for you?
Who it suits, what to consider, and why RVers book it.
Open
Site types
$125 a night for full hookups, plus fees.
Open
Rates & policies
Booking, cancellation, season, cell service and pets.
Open
Before you book
Questions to ask before you reserve.
Open
Headwaters Campground & RV at Flagg Ranch is run by Grand Teton Lodge Company in the John D. Rockefeller, Jr. Memorial Parkway, managed by Grand Teton National Park. It suits RVers who want full hookups and a base for both Yellowstone and Grand Teton.
Best for
- Yellowstone trips: the South Entrance is about 5 minutes north.
- Big rigs: every RV site is a pull-through for up to 45 ft with full hookups.
- Comfort: showers, coin laundry, a store and a lodge restaurant are on site.
- Unplugging: the woods are quiet and cell service is limited.
Consider this
- The RV season is short: June 7 to October 3 in 2026.
- At $125 a night before fees, it’s one of the pricier stays in the area.
- Jackson is about an hour and a half away for big shopping trips.
- Limited cell and internet service; there’s a public phone in the lodge.
Summer at Flagg Ranch
Typical July afternoon
77°
Flagg Ranch
Snake River (NOAA station)
107°
Phoenix
Phoenix Sky Harbor
30 degrees cooler than Phoenix, with nights near 38°. Normal July highs, 1991–2020.
All 97 RV sites are full-hookup pull-throughs (water, sewer and 20/30/50-amp electric) with gravel parking for one RV and one tow vehicle up to 45 ft, a picnic table, a fire pit with a grate and a food storage locker.
Full-hookup RV $125/night
Every RV site has water, sewer and 20/30/50-amp power.
Tent site $61/night
Gravel parking for two vehicles and pads for up to two tents.
Camper cabin $105/night
Bunk-style cabins with a lantern; bedding isn’t included.
Long stays 14 nights max
Stay up to 14 nights here and 30 nights a year across Grand Teton campgrounds.
Nightly$125Full-hookup RV site, plus fees
SeasonJun 7–Oct 32026; 2027 runs May 14–Oct 3
Check-inFrom 12 p.m.Out by 11 a.m.
BookingRecreation.govUp to 6 months ahead
Cancellation$10 feeDay before or day of: lose first night too
Max stay14 nights30 nights a year in the park
Rig lengthUp to 45 ftAll RV sites pull-through
HookupsFullWater, sewer, 20/30/50 amp
Cell serviceLimitedPublic phone in the lodge
PetsWelcome6-ft leash; not on park trails
Checked against Recreation.gov and gtlc.com on October 12, 2026. Rates are set by the concessioner with National Park Service approval; Recreation.gov adds a reservation fee, tax and a utility fee at checkout. For campground questions call (307) 543-2861. Cancel before the day before arrival and you lose a $10 fee; later, you also lose the first night (one-night stays forfeit the full amount).
Good to know before you pull in
Five things that change your booking
Ask these on the phone before you reserve.
- What will my total be? Recreation.gov adds a reservation fee, tax and a utility fee.
- Is my site long enough? RV sites take up to 45 ft in total; confirm your exact site.
- Is the restaurant open on my dates? Lodge services run on their own season.
- Is there road work? Ask about construction on US-89/191/287 between the parks.
- Do I need a park pass? You will to drive into Grand Teton or Yellowstone.
Know before you go
Frequently asked questions
A few details before you hit the road.
Season: Jun 7–Oct 3
Ready to camp between two national parks?
Plug in at Flagg Ranch, drive to Old Faithful in the morning and be back for dinner at the lodge. Book on Recreation.gov as early as you can.
Thank you to the people behind these photos and this video. Please support them by giving their work a look. Campground photos come from Grand Teton Lodge Company, with our thanks, the National Park Service (camper cabin; public domain) and Acroterion (Headwaters Lodge; CC BY-SA 4.0). Video: The Nature of Us on YouTube. Nearby photos: Jacob W. Frank, National Park Service (Old Faithful; public domain), Zeete (Jackson Lake Lodge; CC BY-SA 4.0), Watts (Oxbow Bend; CC BY 2.0) and Acroterion (Jenny Lake; CC BY-SA 4.0); the images were resized or cropped. Other-park photos: Grand Teton Lodge Company (Colter Bay RV Park), Grand Teton Lodge Company (Colter Bay Campground) and Signal Mountain Lodge (Signal Mountain). Review-site logos are trademarks of their owners.
Disclaimer
RV-Roundup is an independent, community-based resource created to help RV travelers and to support and promote the parks we feature. RV-Roundup is not owned by, operated by, or officially affiliated with Headwaters Campground & RV at Flagg Ranch unless otherwise stated.
The information on this page was prepared using the most current details available at the time of publication, including the park’s published materials and publicly available sources. Pricing, availability, rules, policies, regulations, amenities and other details are set by the park and may change at any time without notice. Before you travel or book, please confirm all details directly with Headwaters Campground & RV at Flagg Ranch at gtlc.com or (307) 543-2861. RV-Roundup is not responsible for errors, omissions, or changes made after publication.
We will always do our best to keep this page up to date. Thank you to everyone who contributes; we truly appreciate your help and support.