RV Sites
Michael W
VerifiedSeptember 18, 2020 Stayed at: 037, Loop: B
Great location next to the lake, quiet and beautiful.
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
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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
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027, Loop: B
RV
Gravel · Pull-through
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028, Loop: B
RV
Gravel · Pull-through
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029, Loop: B
RV
Gravel · Pull-through
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030, Loop: B
RV
Gravel · Pull-through
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031, Loop: B
RV
Gravel · Pull-through
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032, Loop: B
RV
Gravel · Pull-through
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033, Loop: B
RV
Gravel · Pull-through
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034, Loop: B
RV
Gravel
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035, Loop: B
RV
Gravel · Driveway entry: Back-In
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036, Loop: B
RV
Gravel · Driveway entry: Back-In
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037, Loop: B
RV
Gravel · Driveway entry: Back-In
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038, Loop: B
RV
Gravel · Pull-through
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039, Loop: B
RV
Gravel · Driveway entry: Back-In
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040, Loop: B
RV
Gravel · Driveway entry: Back-In
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041, Loop: B
RV
Gravel · Pull-through
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042, Loop: B
RV
Gravel · Pull-through
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043, Loop: B
RV
Gravel · Pull-through
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044, Loop: B
RV
Gravel · Pull-through
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045, Loop: B
RV
Gravel · Pull-through
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046, Loop: B
RV
Gravel · Pull-through
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Site Details
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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
Michael W
VerifiedSeptember 18, 2020 Stayed at: 037, Loop: B
Great location next to the lake, quiet and beautiful.
Helpful
Alvin A
September 4, 2020
We rented the group site for our 2 families - a beautiful, secluded setting, and very reasonably priced, especially on weekdays. The group site has its own bathrooms (amazingly clean vault toilets), and the onsite water hydrants were very convenient. The hosts were friendly but unobtrusive - they stopped in and warned us that bears had visited every campsite within the last week. As recommended, we stowed our stuff inside the provided bear boxes, and saw and heard no bears at all. We did see a cow moose several times, and woke at 3am to the thrilling sound of an elk barking nearby. There are plenty of things to do in the area. It was a short hike to the reservoir. We did a little evening trip to the spectacular Mesa Falls, and a day trip exploring Yellowstone - the west entrance is only about 35 minutes away. We came away with lots of good memories, glad we chose this place.
Helpful
Alvin A
September 4, 2020
We rented the group site for our 2 families - a beautiful, secluded setting, and very reasonably priced, especially on weekdays. The group site has its own bathrooms (amazingly clean vault toilets), and the onsite water hydrants were very convenient. The hosts were friendly but unobtrusive - they stopped in and warned us that bears had visited every campsite within the last week. As recommended, we stowed our stuff inside the provided bear boxes, and saw and heard no bears at all. We did see a cow moose several times, and woke at 3am to the thrilling sound of an elk barking nearby. There are plenty of things to do in the area. It was a short hike to the reservoir. We did a little evening trip to the spectacular Mesa Falls, and a day trip exploring Yellowstone - the west entrance is only about 35 minutes away. We came away with lots of good memories, glad we chose this place.
Helpful
Allen W
VerifiedAugust 31, 2020 Stayed at: 038, Loop: B
Dusty roads in the campground because there is no sign to what loop is A loop or B loop C loop so people drive around and around to to find their camp site
Helpful
Allen W
VerifiedAugust 31, 2020 Stayed at: 038, Loop: B
Dusty roads in the campground because there is no sign to what loop is A loop or B loop C loop so people drive around and around to to find their camp site
Helpful
Allen W
VerifiedAugust 24, 2020 Stayed at: 038, Loop: B
Very clean
Helpful
Allen W
VerifiedAugust 24, 2020 Stayed at: 038, Loop: B
Very clean
Helpful
Bradley G
VerifiedJuly 30, 2020 Stayed at: 031, Loop: B
Beautiful site. Short trail down to the lake, approximately 100 yards. Right across from toilets. Quiet. Roomy site. Enough space for four or five tents.
Helpful
Bradley G
VerifiedJuly 30, 2020 Stayed at: 031, Loop: B
Beautiful site. Short trail down to the lake, approximately 100 yards. Right across from toilets. Quiet. Roomy site. Enough space for four or five tents.
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
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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
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Managed by the USDA Forest Service