RV Sites
Bryce B
VerifiedNovember 25, 2025 Stayed at: 043, Loop: B
Love this campground. Great hosts and clean bathrooms. Just need more sites with power.
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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Jan
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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
Bryce B
VerifiedNovember 25, 2025 Stayed at: 043, Loop: B
Love this campground. Great hosts and clean bathrooms. Just need more sites with power.
Helpful
Harold N
VerifiedNovember 12, 2025 Stayed at: 031, Loop: B
quiet and peaceful. restrooms were very clean and camp host was excellent.
Helpful
Harold N
VerifiedNovember 12, 2025 Stayed at: 031, Loop: B
quiet and peaceful. restrooms were very clean and camp host was excellent.
Helpful
Lissette E
VerifiedOctober 14, 2025 Stayed at: 037, Loop: B
It was such a fun experience! The camp host was great and very accomodating. We enjoyed going to Yellowstone and seeing Old Faithful.
Helpful
Lissette E
VerifiedOctober 14, 2025 Stayed at: 037, Loop: B
It was such a fun experience! The camp host was great and very accomodating. We enjoyed going to Yellowstone and seeing Old Faithful.
Helpful
Cynthia S
VerifiedSeptember 13, 2025 Stayed at: 038, Loop: B
We were there after Labor Day and the campground was quiet, quiet, quiet. The hosts were very helpful as we arrived and then left us to enjoy ourselves. Campsites were spacious. Ours had a fairly new picnic table along with a fire ring and grilling platform. We were in the midst of the lodgepole pine forest. The Island Park Reservoir and boat ramp are nearby. Water is low this time of year so there wasn’t a lot of boat noise. We made day trips to Yellowstone National Park and Upper Mesa Falls. We will add this place to our favorites list.
Helpful
Cynthia S
VerifiedSeptember 13, 2025 Stayed at: 038, Loop: B
We were there after Labor Day and the campground was quiet, quiet, quiet. The hosts were very helpful as we arrived and then left us to enjoy ourselves. Campsites were spacious. Ours had a fairly new picnic table along with a fire ring and grilling platform. We were in the midst of the lodgepole pine forest. The Island Park Reservoir and boat ramp are nearby. Water is low this time of year so there wasn’t a lot of boat noise. We made day trips to Yellowstone National Park and Upper Mesa Falls. We will add this place to our favorites list.
Helpful
Stanley W
VerifiedAugust 28, 2025 Stayed at: 041, Loop: B
This was our first year staying at this campground were very pleased with the area it was clean, and the bathrooms were also clean every day. The camp host were very nice and helpful with any questions we had. we will be using the area again.
Helpful
Stanley W
VerifiedAugust 28, 2025 Stayed at: 041, Loop: B
This was our first year staying at this campground were very pleased with the area it was clean, and the bathrooms were also clean every day. The camp host were very nice and helpful with any questions we had. we will be using the area again.
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