BUTTERMILK
BUTTERMILK
BUTTERMILK
BUTTERMILK
BUTTERMILK

Featured amenities

Picnic Table Picnic Table
Restrooms Restrooms
Fire Pit Fire Pit

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 sites

Seasonal 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 Picnic Table
Restrooms Restrooms
Fire Pit Fire Pit
Water and Hygiene

Water and Hygiene

  • Restrooms
Cooking and Fire

Cooking and Fire

  • Picnic Table
  • Fire Pit
  • Campfire Ring
Water Access

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

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

Reviews

206 reviews

Summary

AI generated

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

Write a review
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

Richy G

Verified

August 8, 2026 Stayed at: 033, Loop: B

Great location for our whole family. The campsite is near water, close proximity to food, grocery and other things that you might need, or have forgotten at home.

Quick trip to Big Springs floating. Very well maintained campground with some the best vault toilets we've experienced while camping.

Helpful

Randell T

Verified

August 8, 2026 Stayed at: 037, Loop: B

I was honestly so surprised to find this little gem! We normally stay at Buffalo but so many people know about it now and it’s booked so far out and just overcrowded with people. We decided to try Buttermilk and were so happy we did! So quiet, lots of shade, and not nearly as crowded. The bathrooms looked like they had just been redone and were very clean. The camp host was so nice and it was right by the reservoir. We will definitely be coming here next time we visit Island Park.

Helpful

Lori W

Verified

July 30, 2026 Stayed at: 036, Loop: B

Not heavily populated. We were some of the only guests around. You could walk up to the water near the campsite which was nice. There was also a path to the nearby boat dock that had a kayak rental. Would definitely stay here again!

Helpful

Jed S

Verified

July 25, 2026 Stayed at: 044, Loop: B

Some of the best vault toilets I've experienced

Helpful

George C

Verified

July 20, 2026 Stayed at: 034, Loop: B

One of the nicest campground and host I’ve been to

Helpful

ken p

Verified

July 16, 2026 Stayed at: 028, Loop: B

Clean campground and clean and air freshener vaulted bathrooms

Helpful

Anna M

Verified

July 15, 2026 Stayed at: 046, Loop: B

Nice campground. It looks like they just put in new tables and fire pits. Bathroom was clean

Helpful

Kirk C

Verified

July 12, 2026 Stayed at: 039, Loop: B

Camp site was very clean as well as the restrooms!!!! They always do a good job keeping the campground up and nice.

Helpful

Allen W

Verified

July 8, 2026 Stayed at: 038, Loop: B

X

Helpful

Leo P

Verified

July 6, 2026 Stayed at: 044, Loop: B

Nice and quiet campground. The pull thru made set up pretty easy. This was our first off grid camping trip with our trailer and we cannot wait to do it again. This was so much better than the typical RV Parks where you are squeezed in where you can almost reach out and touch your neighbor.
My only issue - when I made the reservation on the website the description says there is water. It is not clear, at least in my opinion, that each site does not have water. Instead, the campground has a few water spigots around the campground that you can fill your fresh water tank with. The closest one to our campground required us to almost block the entire road while we filled our fresh tank. I think the website should be a lot more clear about this as we likely would have filled our tank before we left our house.
Overall, we enjoyed this campground and would definitely book this again in the future.

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...

Nearest town

Island Park, ID - 6.9 mi

About 10 min to downtown

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

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Managed by the USDA Forest Service