Wyoming
Cancellation alerts

Headwaters Campground at Flagg Ranch

We watch every site at Headwaters Campground at Flagg Ranch 24/7, then email you the moment a cancellation opens up.

100% of weekends booked at top sites·Peak Jul–Sep·171 sites
Set up an alert for Headwaters Campground at Flagg Ranch

Pick your dates, pick the sites you want, we do the watching.

Park favorites

The 10 most popular campsites at Headwaters Campground at Flagg Ranch

Booked on virtually every weekend during peak season (Jul–Sep). They reserve months ahead and rebook within minutes when cancelled — set up an alert and we'll email you the moment one opens.

Site 327

Best here · 3 tied
Ranked #1 of 171
RV Electric · Sleeps 10 · Electric

Site 319

Best here · 3 tied
Ranked #1 of 171
RV Electric · Sleeps 10 · Electric

Site 307

Best here · 3 tied
Ranked #1 of 171
RV Electric · Sleeps 10 · Electric

Site 505

Top pick
Ranked #4 of 171
RV Electric · Sleeps 10 · Electric

Site 522

Top pick
Ranked #4 of 171
RV Electric · Sleeps 10 · Electric

Site 323

Top pick
Ranked #4 of 171
RV Electric · Sleeps 10 · Electric

Site 513

Top pick
Ranked #4 of 171
RV Electric · Sleeps 10 · Electric

Site 329

Top pick
Ranked #8 of 171
RV Electric · Sleeps 10 · Electric

Site 502

Top pick
Ranked #8 of 171
RV Electric · Sleeps 10 · Electric

Site 305

Top pick
Ranked #10 of 171
RV Electric · Sleeps 10 · Electric

These sites rebook within minutes of being cancelled. Set an alert at Headwaters Campground at Flagg Ranch and we’ll email you the moment one opens up.

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About this park

Headwaters at Flagg Ranch is situated in a tranquil setting along the upper reaches of the Snake River, surrounded by meadows and conifer forests. The Yellowstone Plateau rises to the north, and Huckleberry Mountain to the east. Within walking distance is Polecat Creek, which runs through forests, wildflower meadows, and thermal features. For avid anglers, the Snake River offers plentiful cutthroat trout, brook trout, and whitefish. This area is known for its remarkable fly fishing and photography opportunities. Headwaters is home to elk, moose, mule deer, wolves, black and grizzly bears, a wide variety of birds and more. Bears are often seen on trails and in the developed areas. Being prepared for an animal encounter can help ensure your safety as well as that of the wildlife that call this spectacular area home.