RV Sites
David S
VerifiedJuly 22, 2025 Stayed at: 041, Loop: B
The camo Hosts are very friendly and helpful. We will be back and don't say you haven't been warned. We will return!
Helpful
About Buttermilk
Buttermilk Campground is located approximately 30 mi southwest of West Yellowstone, Montana and 32 mi north of Ashton, Idaho in beautiful Island Park, Idaho.
Buttermilk sits next to Island Park Reservoir at an elevation of 6.2 ft. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities.
Available sites
20 total sitesSeasonal information
2026
(Current year)
2026 Season availability
Current season
Upcoming seasons
Past seasons
Closed periods
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Currently closed
Campground Amenities
Most popular amenities
Picnic Table
Restrooms
Fire Pit
Water and Hygiene
- Restrooms
Cooking and Fire
- Picnic Table
- Fire Pit
- Campfire Ring
Water Access
- Boat Ramp / Launch
Missing information?
Rates, Sites & Availability
Select check-in and check-out dates to see real-time availability for each site.
20 Sites Available
🚐
027, Loop: B
RV
Gravel · Pull-through
🚐
028, Loop: B
RV
Gravel · Pull-through
🚐
029, Loop: B
RV
Gravel · Pull-through
🚐
030, Loop: B
RV
Gravel · Pull-through
🚐
031, Loop: B
RV
Gravel · Pull-through
🚐
032, Loop: B
RV
Gravel · Pull-through
🚐
033, Loop: B
RV
Gravel · Pull-through
🚐
034, Loop: B
RV
Gravel
🚐
035, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
036, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
037, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
038, Loop: B
RV
Gravel · Pull-through
🚐
039, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
040, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
041, Loop: B
RV
Gravel · Pull-through
🚐
042, Loop: B
RV
Gravel · Pull-through
🚐
043, Loop: B
RV
Gravel · Pull-through
🚐
044, Loop: B
RV
Gravel · Pull-through
🚐
045, Loop: B
RV
Gravel · Pull-through
🚐
046, Loop: B
RV
Gravel · Pull-through
No sites found matching your criteria.
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
0 more sites below
Site Details
Select a site to view details
20 Sites Available
Site
Price
🚐
027, Loop: B
RV
Gravel · Pull-through
🚐
028, Loop: B
RV
Gravel · Pull-through
🚐
029, Loop: B
RV
Gravel · Pull-through
🚐
030, Loop: B
RV
Gravel · Pull-through
🚐
031, Loop: B
RV
Gravel · Pull-through
🚐
032, Loop: B
RV
Gravel · Pull-through
🚐
033, Loop: B
RV
Gravel · Pull-through
🚐
034, Loop: B
RV
Gravel
🚐
035, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
036, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
037, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
038, Loop: B
RV
Gravel · Pull-through
🚐
039, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
040, Loop: B
RV
Gravel · Driveway entry: Back-In
🚐
041, Loop: B
RV
Gravel · Pull-through
🚐
042, Loop: B
RV
Gravel · Pull-through
🚐
043, Loop: B
RV
Gravel · Pull-through
🚐
044, Loop: B
RV
Gravel · Pull-through
🚐
045, Loop: B
RV
Gravel · Pull-through
🚐
046, Loop: B
RV
Gravel · Pull-through
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
Reviews
206 reviews
Summary
Buttermilk campground receives high praise for its beautiful, well-maintained sites and clean facilities, including some of the best vault toilets experienced by campers. Visitors appreciate the spaciousness and privacy of the campsites, along with the friendly and helpful camp hosts. The location offers a peaceful retreat near water and convenient access to nearby attractions, making it a favorite destination for families.
Based on guest feedback
4.6
Overall rating
Based on 206 reviews
5 stars
71.8% (148)
4 stars
19.9% (41)
3 stars
5.8% (12)
2 stars
0.5% (1)
1 star
1.9% (4)
Showing 206 reviews
Verified Only
Sort by: Newest First
David S
VerifiedJuly 22, 2025 Stayed at: 041, Loop: B
The camo Hosts are very friendly and helpful. We will be back and don't say you haven't been warned. We will return!
Helpful
jolene c
VerifiedJuly 20, 2025 Stayed at: 029, Loop: B
Campground and restrooms were well kept. Host was courteous and friendly.
Helpful
jolene c
VerifiedJuly 20, 2025 Stayed at: 029, Loop: B
Campground and restrooms were well kept. Host was courteous and friendly.
Helpful
Craig K
VerifiedJuly 17, 2025 Stayed at: 043, Loop: B
camp was clean as were the restrooms. Host was great.
Helpful
Craig K
VerifiedJuly 17, 2025 Stayed at: 043, Loop: B
camp was clean as were the restrooms. Host was great.
Helpful
Jeffry G
VerifiedJuly 16, 2025 Stayed at: 042, Loop: B
We managed to get our 40 ft class A RV into site number 1. The site was decent. But the road to the campground is atrocious. I should not have attempted it even though I was successful. It is very narrow and potholes are unavoidable. Like driving through an earthquake. The drive popped out our windshield. Branches scratched the side of the coach in many places. It was not a wise stop for us. The scenery and the river we were beside were stunning. But the drive in and out was horrible. If they would just grate the 2.8 mi of gravel road three or four times a year it would make a huge difference.
Helpful
Jeffry G
VerifiedJuly 16, 2025 Stayed at: 042, Loop: B
We managed to get our 40 ft class A RV into site number 1. The site was decent. But the road to the campground is atrocious. I should not have attempted it even though I was successful. It is very narrow and potholes are unavoidable. Like driving through an earthquake. The drive popped out our windshield. Branches scratched the side of the coach in many places. It was not a wise stop for us. The scenery and the river we were beside were stunning. But the drive in and out was horrible. If they would just grate the 2.8 mi of gravel road three or four times a year it would make a huge difference.
Helpful
Kevin W
VerifiedJuly 5, 2025 Stayed at: 032, Loop: B
Campsite and bathrooms were clean and well taken care of. The host was kind and helpful.
Helpful
Kevin W
VerifiedJuly 5, 2025 Stayed at: 032, Loop: B
Campsite and bathrooms were clean and well taken care of. The host was kind and helpful.
Helpful
Location & Directions for Buttermilk
Buttermilk Loop Rd, Island Park, ID 83429 United States
Elevation: 1,931 ft
Getting There
From West Yellowstone, Montana, take Highway 20 south, southwest for approximately 25 mi and from Ashton, Idaho, take Highway 20 north for approximately 27 mi.
Turn west onto the Kilgore-Yale Road #030 (across from Elk Creek Gas Station) and go a...
From West Yellowstone, Montana, take Highway 20 south, southwest for approximately 25 mi and from Ashton, Idaho, take Highway 20 north for approximately 27 mi.
Turn west onto the Kilgore-Yale Road #030 (across from Elk Creek Gas Station) and go about 2 mi to the Buttermilk Loop Road #126. Turn onto #126 and go approximately 3 mi 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.
Near Yellowstone National Park
The closest entrance is: West Entrance
Approximate drive: 27.7 mi · 47 min
Policies & Rules
Cancellation policy
- Reservation fees are non-refundable. For campsites, cabins, lookouts, yurts, group sites, and similar stays, we charge a reservation service fee of $8.
- Standard cancellations usually have a $10 cancellation fee. Customers can generally cancel before the check-in date online.
- Late cancellation rules differ by stay type.
- Individual campsites: cancelling after 12:00am local time the day before arrival usually means a $10 cancellation fee plus forfeiting the first night's fee.
- Cabins, lookouts, and yurts: cancelling less than 14 days before arrival usually means a $10 cancellation fee plus forfeiting the first night's fee.
- One-night reservations: a late cancellation usually forfeits the full amount paid, up to the total original reservation cost.
- Modifications are allowed before the cut-off window, but fees depend on the change. Changing to dates completely outside the original reservation dates may trigger a $10 change fee. Extending or shortening a stay that still includes original dates usually has no change fee, though refunds may depend on timing and facility rules. Switching to the same type of campsite for the same dates usually has no change fee, but price differences are charged or refunded.
- Early departures may or may not be refunded. At certain facilities, partial refunds may be possible if staff can mark the site available for other visitors. No refund is given for a night if the early departure is requested after that day's check-out time.
- Security deposits are separate. Security deposits may be refunded to the original payment method if the facility is left in acceptable condition, as determined by the property.
Safety & rules
- Be aware of wildlife in the area.
- Follow safety guidelines for Off-Highway Vehicles in Idaho.
Fees & deposits
- There is a $7 fee for each additional vehicle at the campground.
Site types & loops
- ATVs and OHVs are not permitted in the campground.
Site capacity
- Sites are available on a first-come, first-served basis.
General
- Click here for more information on the Caribou-Targhee National Forest
Fires & fuel
- To prevent pests, do not move firewood; obtain it locally and burn it on-site.
Nearby Campgrounds
Nearby destinations
Last updated: October 23, 2026
Need help?
Our team is here to help you find the perfect spot for your next adventure.
Message us
Replies within minutes
Explore Island Park, ID
Population: 170
Nearby city: Idaho Falls, ID
Approx. 72 mi away (straight-line distance)
Elevation: 6,289 ft
Island Park, ID
Weather & Conditions
Loading destination weather
From our Travel Guides
Managed by the USDA Forest Service