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Buffalo (Idaho)

FSU.S. Forest Service — ISLAND PARK · Idaho · Caribou-Targhee National Forest

AgencyFSU.S. Forest Service
AreaCaribou-Targhee National Forest
LocationISLAND PARK · Idaho · Caribou-Targhee National Forest · 44.42639, -111.36889 · Map
Sites49 public sites counted from the federal listing — 30 standard nonelectric; 18 standard electric; 1 group standard nonelectric
Getting a siteReservable — the federal listing marks this campground as taking reservations. Some sites or seasons may still be first-come; the listing’s own words are below.
HookupsElectric at 19 of 49 sites (up to 50 amp where reported)
Water hookups at 0 of 49 sites
Sewer hookups at 0 of 49 sites
Full hookups (all three at one site) at 0 of 49 sites
Counted site by site from affirmative reports in the federal record. A site with no report is not counted either way.
Max RV lengthLongest reported site fits 60 ft
Sites that fit at least — 25 ft: 50 sites · 30 ft: 49 sites · 35 ft: 49 sites · 40 ft: 34 sites
Months openNot in federal data — the federal listing does not publish a season for this campground. Check the official description below or Recreation.gov.
FeesNot reported — the federal listing carries no fee description for this campground.
Check-in / outIn 2:00 PM · Out 12:00 PM (most common in the listing)
PetsAllowed at 1 sites, as reported
Accessible sites1 marked accessible in the listing
AccessibilityN
Phone208-558-7658 OR 208-270-0094

Check availability & book on Recreation.gov →

This site takes no reservations and shows no live availability. Source: Recreation.gov (RIDB export pulled November 5, 2026); this listing was last updated in the federal record on 2026-02-25.

From the official listing

Overview Buffalo Campground is located 26 miles south of West Yellowstone, Montana and 25 miles north of Ashton, Idaho in beautiful Island Park, Idaho.

Buffalo is a large campground just off U.S. Highway 20 on the banks of the Buffalo River at an elevation of 6,200 feet. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities. Recreation The Island Park area is renowned for its fishing; the Henry's Fork is known as one of the nation's best fly-fishing streams. Anglers cast for rainbow, cutthroat and brook trout and Kokanee salmon. Island Park Reservoir and Henry's Lake are nearby, both offering boating, water skiing and excellent fishing opportunities.

Hiking, biking, horseback riding and ATVing are popular activities. Many miles of trails are in the area, including the Continental Divide National Scenic Trail and the Nez Perce Trail.

The Big Springs National Recreation Water Trail offers an approximately three-hour float or canoe trip through beautiful scenery. Wildlife, including moose, bald eagles and Sandhill cranes, are often seen along the trail. Facilities The campground has six loops of single and double family sites and one loop for group camping, for a total of 127 sites, many of which are reservable. The large group site can accommodate 150 people. One loop has electric hook-ups and all loops are paved.

Accessible vault toilets are provided, as is drinking water and trash collection. A separate parking area is located at the accessible fishing dock and viewing platforms on the east end of the campground.

Ponds Lodge is just across the highway and has fuel, groceries and other amenities.

Natural Features Island Park is composed of two areas of extinct volcanic activity. The Henry's Fork Caldera sits inside the larger Island Park Caldera. The area is known for its dense forests of lodgepole pine, broad grassy meadows bursting with summer wildflowers and a wide variety of wildlife, including black and grizzly bears, moose, elk, deer, bald eagles, Sandhill cranes and much, much more.

The campground lies alongside the Buffalo River, created by a large spring just 4.5 miles away. The Buffalo is a tributary of the Henry's Fork, and flows into it just 2 miles east of the campground. Brook and rainbow trout are plentiful in the Buffalo and a variety of waterfowl and wildlife frequents the river corridor. Nearby Attractions Mesa Falls Scenic Byway is 7 miles south of the campground. This 28-mile road leads to scenic overlooks and trails at 110 foot Upper Mesa Falls and 85 foot Lower Mesa Falls.

Harriman State Park is 8 miles south. The Henry's Fork meanders through the Harriman, offering excellent fishing. Over 20 miles of trails are available, and wildlife is abundant in this scenic park.

Henry's Lake State Park is 11 miles north, offering fishing, a fish cleaning station and boat ramp.

Yellowstone National Park's west entrance is just 26 miles north in the town of West Yellowstone, Montana. Visitors enjoy day-tripping to the park for unparalleled wildlife viewing and the beautiful and unique scenery.

Directions, from the listing

From West Yellowstone, Montana, take U.S. Highway 20 south for 26 miles.

From Ashton, Idaho: Take U.S. Highway 20 north for 25 miles. The campground entrance is .25 miles north of Ponds Lodge on the east side of the highway.

Nearest federal campgrounds

FSU.S. Forest ServiceButtermilk
3 mi straight-line · ISLAND PARK Idaho
FSU.S. Forest ServiceMcCrea Bridge
3 mi straight-line · ISLAND PARK Idaho
FSU.S. Forest ServiceUpper Coffee Pot
4 mi straight-line · ISLAND PARK Idaho
FSU.S. Forest ServiceFlat Rock (Idaho)
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FSU.S. Forest ServiceBig Springs Warming Hut
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Trip Card — Buffalo (Idaho)

ISLAND PARK · Idaho · Caribou-Targhee National Forest

AgencyFS · U.S. Forest Service
LocationISLAND PARK · Idaho · Caribou-Targhee National Forest
FeesNot reported in the federal data
Getting a siteReservable
HookupsElectric at 19
Max RVUp to 60 ft
Months openNot in federal data
Sites49 sites

Book: recreation.gov/camping/campgrounds/232219 · Source: Recreation.gov, pulled November 5, 2026. Facility details come from federal recreation data and may be out of date — this site takes no reservations and shows no live availability; confirm details and book through Recreation.gov or the managing agency.