Idaho · published-coordinate region

Buttermilk

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USDA Forest Service
21Supported overnight records
3Published site categories
21Sites with a reported party limit
A useful starting point, not a fit guarantee. Site-specific warnings are absent from this export. Published lengths may include a tow vehicle. Check the official site page for current notes, restrictions, approach and configuration before booking. No live availability is shown.

A closer look at the 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.

Full operator-supplied campground description · Scroll within the panel for more · Amenities may be shared by the campground, not present at every site

How much is documented?

Reported fields across the 21 supported campsite records here. A reported value can still need interpretation; missing values remain unknown in the planner.

Party limit
21
Vehicle limit
21
Vehicle length
21
Driveway entry
20
Shade
19

Bars show counts, not a quality, accessibility or suitability score.

The campsite mix

Standard Nonelectric
19
Standard Electric
1
Group Standard Nonelectric
1

Operator directions

From West Yellowstone, Montana, take Highway 20 south, southwest for approximately 25 miles and from Ashton, Idaho, take Highway 20 north for approximately 27 miles. Turn west onto the Kilgore-Yale Road #030 (across from Elk Creek Gas Station) and go about 2 miles to the Buttermilk Loop Road #126. Turn onto #126 and go approximately 3 miles to an intersection where you will see the campground sign just off the right side of the road. The road will split ahead, with boat ramp and group area on the left, and the single loops to the right.

Campground-level source text. Confirm the current route and road conditions with the operator.

THE ACTUAL SITES

21 published campsite records

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Raw published values are shown below, including zeros and ambiguous text. They are not validated capacities. The planner keeps missing, zero and questionable dimensions unknown.

View all 21 published site records
Select a site number to check its official current details
SITE / LOOPTYPEEQUIPMENT LIMITSPEOPLE / VEHICLESDRIVEWAYELECTRIC / SHADE
Site 027
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 028
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 50 ft
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 029
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 030
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 031
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 032
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 033
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 034
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Not reported
Not reported
Not reported
Shade: Yes
Site 035
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 50 ft
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
16 people
2 vehicles
Back-In
Not reported
Not reported
Shade: Yes
Site 036
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Back-In
Not reported
Not reported
Shade: Yes
Site 037
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 50 ft
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
16 people
2 vehicles
Back-In
Not reported
Not reported
Shade: Not reported
Site 038
B
Source updated: 2025-12-06
Standard Electric
Rv: 50 ft
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
15
Shade: Not reported
Site 039
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Back-In
Not reported
Not reported
Shade: Yes
Site 040
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 50 ft
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
16 people
2 vehicles
Back-In
Not reported
Not reported
Shade: Yes
Site 041
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 042
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 043
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 044
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 045
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site 046
B
Source updated: 2025-12-06
Standard Nonelectric
Rv: 45 ft
Tent: 45 ft
Trailer: 45 ft
Numeric screening only
8 people
1 vehicles
Pull-Through
Not reported
Not reported
Shade: Yes
Site GS1
BUTTERMILK
Source updated: 2025-12-06
Group Standard Nonelectric
Caravan/Camper Van: limit unknown
Fifth Wheel: limit unknown
Large Tent Over 9x12`: limit unknown
Pickup Camper: limit unknown
Pop Up: limit unknown
Rv: 50 ft
Small Tent: limit unknown
Tent: 50 ft
Trailer: 50 ft
Numeric screening only
150 people
30 vehicles
Back-In
Not reported
Not reported
Shade: Yes

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Straight-line distances between campground points, not driving distance or route advice.