14
Pull-thru
USFSCaribou-Targhee National Forest · Idaho
Buttermilk
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.
Sites5621 reservable
Elev.6,335ft
Comf.n/a
Max rig50 ft14 pull-thru
Electric1sites
From Idaho Falls1h47real road time
The honest read
Synthesized from
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
Sits at 6,335 ft. 56 sites total: 21 reservable and 35 first-come, first-served. Of the sites, 14 pull-through, and the longest takes a 50-ft rig. Within about 4 miles: lake or river access.
The campground at a glance
01 · CHARACTER
Reads strongest on cool nights and reservability. Softest on roomy sites.
Six axes, each scored relative to every other federal campground in the region: quiet (miles to a major road), cool (elevation), roomy (average site spacing), shade, RV-fit (longest rig), and how reservable it is. All six come from data, nothing hand-tuned.
Getting there
03 · ACCESS
01
Idaho Falls
87 mi
1h47
02
Boise
366 mi
6h14
03
Coeur d'Alene
434 mi
7h48
By drive time
Routed road time (OSRM). Nearest major highway 2.8 mi away.
Picking your site
04 · 56 SITES
Color byShow only
55 mapped sites · dot color = seclusion · click a dot for details. Basemap © OpenStreetMap.
0
Walk-in
0
50-amp
0
Accessible
0
Prime
56
Sites
★ The standout
Site 038
B · pull-through.
To neighbor
182 ft
Max rig
50 ft
Type
Pull-thru
What's within four miles
05 · TRAILS · PEAKS · WATER
Trails & Peaks
Trail segments
12
Viewpoints
1
Water & Access
Lake / river access
yes
To nearest major road
2.8 mi
Method
We synthesize public data layers: RIDB and Recreation.gov facility and site records, Open-Meteo climate normals, OpenStreetMap roads, trails, and water, OSRM drive times, and USGS elevation. We take no bookings, no ads, and no paid placements. Independence is the entire point.