RV Sites
Timothy P
VerifiedSeptember 17, 2026 Stayed at: 038, Loop: B
Great site and loved that it was rather secluded and near the water
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
Amy M
VerifiedSeptember 15, 2026 Stayed at: 030, Loop: B
Beautiful place to camp. The water level on the inlet was way down, but that didn’t take away from a great time. The area was clean and there was privacy in the site. The Host drove through once daily to check on things and was very friendly. Would love to come back to Buttermilk.
Helpful
Denise M
September 12, 2026
this campground is wonderfull, big , fits a lot of larger trailors, near by we enjoy the fair that is held at island park village this is during the labor day weekend, we enjoy floating the bear river . There is tons of 4 wheel riding trail's .
Helpful
spencer s
VerifiedAugust 30, 2026 Stayed at: 040, Loop: B
host's were great, clean, restrooms were very clean..
Helpful
Jeff S
VerifiedAugust 29, 2026 Stayed at: 032, Loop: B
3 negatives at the campground- the reservoir was in a major algae bloom, the pit toilet smelled awful, and they were updating the campground so there was jack hammering during the day.
Helpful
Georgina G
VerifiedAugust 23, 2026 Stayed at: 038, Loop: B
We love Buttermilk! Great sites, lots of trails for biking and running, close to the water, nice and quiet.
Helpful
Rachel R
VerifiedAugust 21, 2026 Stayed at: 033, Loop: B
This is the second summer in a row that my family and I have stayed at Buttermilk. We enjoy staying here so much! The campground is beautiful and well kept, the sites are spacious and tidy, we like the fire pit. The bathrooms are pit toilets but they are kept extremely clean! Great lake acres as well. We like this campground because it's far enough away from town to be quiet but not too far away in case you need to quickly grab supplies. We look forward to visiting again!
Helpful
Balázs K
VerifiedAugust 13, 2026 Stayed at: 029, Loop: B
It was pefect for us. The nature was very beautiful here.
Helpful
Jared K
VerifiedAugust 10, 2026 Stayed at: 034, Loop: B
Great Campground, Hosts were very helpful. Recent upgrades to each site, new tables, new, CLEAN vault toilets. We had a great time here.
Helpful
Tracy S
VerifiedAugust 10, 2026 Stayed at: 035, Loop: B
.
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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From our Travel Guides
Managed by the USDA Forest Service