Buttermilk

ISLAND PARK, Idaho

Blocked todayIdaho
Blocked today

Free — you'll pick up right here.

Conditions: Blocked

for campground, today

An agency closure order is in effect for this area; weather is good

2 factors · 2 sources

Newest 14 h ago · oldest 14 h

  • problem: Agency alerts

    25 active alerts in Caribou-Targhee National Forest; most severe: 04-15-26-302 Tunnel Fire Closure

    USFSPosted May 8 · checked 14 h ago

  • clear: Weather

    Clear, high 72°F / low 34°F, 0% precip — 100/100 for campground

    OpenWeather14 h ago

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Campsite availability

Live from Recreation.gov for Buttermilk.

Book on Recreation.gov
Oct 10 – Oct 17
7 nights

We'll watch 2026-10-10 → 2026-10-17 and email you the moment something frees up. No account needed.

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Buttermilk

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About this campground

Overview Buttermilk Campground is located approximately 30 miles southwest of West Yellowstone, Montana and 32 miles north of Ashton, Idaho in beautiful Island Park, Idaho. Buttermilk sits next to Island Park Reservoir 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 prized 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 offers boating, water skiing and excellent fishing opportunities. The reservoir is used for irrigation so the water level recedes throughout the summer, but is generally useable all season. Henry's Lake is nearby. 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 contains two loops for single family camping and one loop for group camping, with a total of 55 sites. The large group site can accommodate up to 150 people. Site 038 has 15-amp electric hookups. Vault toilets and drinking water are provided. A concrete boat ramp with docks is located between the group camping and single family camping loops. Access to the campground is on a paved road but the interior loop roads and parking spurs are gravel. 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 is situated in a forest of lodgepole pine, which provides partial shade in some sites. Some areas of the campground are more open and sunny than others. Nearby Attractions Mesa Falls Scenic Byway is 13 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 15 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 18 miles north, offering fishing, a fish cleaning station and boat ramp. Yellowstone National Park's west entrance is just 29 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.

Campsite info

Sites
56
Site types
Group, Tent, Rv
Reservable
Yes
Potable waterVault toiletsElectric hookups
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Guided trips nearby

Local operators near ISLAND PARKoffering guided trips. You book directly with them — Roamze doesn’t take a cut.

Buffalo Crossing RV Park

Camping business nearby (~22 mi away) — hasn't claimed their Roamze page yet

View operator

Jolley Camper Home

Camping business nearby (~27 mi away) — hasn't claimed their Roamze page yet

View operator

Yellowstone Golf Resort at Aspen Acres RV Park

Camping business nearby (~27 mi away) — hasn't claimed their Roamze page yet

View operator