OutReserve

Buttermilk

BUTTERMILK
BUTTERMILK
BUTTERMILK
BUTTERMILK
BUTTERMILK

Featured amenities

Picnic Table
Restrooms
Fire Pit

About Buttermilk

Buttermilk Campground is located approximately 30 miles southwest of West Yellowstone, Montana and 32 miles north of Ashton, Idaho in beautiful Island Park, Idaho. Buttermilk sits next to Island Park Reservoir at an elevation of 6,200 feet. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities.

Number of accommodations: 20

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 open - May 22 to Sep 15

Campground Amenities

Most popular amenities

Picnic Table
Restrooms
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
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
No Hookups
Price not available
🚐 028, Loop: B
No Hookups
Price not available
🚐 029, Loop: B
No Hookups
Price not available
🚐 030, Loop: B
No Hookups
Price not available
🚐 031, Loop: B
No Hookups
Price not available
🚐 032, Loop: B
No Hookups
Price not available
🚐 033, Loop: B
No Hookups
Price not available
🚐 034, Loop: B
No Hookups
Price not available
🚐 035, Loop: B
No Hookups
Price not available
🚐 036, Loop: B
No Hookups
Price not available
🚐 037, Loop: B
No Hookups
Price not available
🚐 038, Loop: B
Water & Electric
Price not available
🚐 039, Loop: B
No Hookups
Price not available
🚐 040, Loop: B
No Hookups
Price not available
🚐 041, Loop: B
No Hookups
Price not available
🚐 042, Loop: B
No Hookups
Price not available
🚐 043, Loop: B
No Hookups
Price not available
🚐 044, Loop: B
No Hookups
Price not available
🚐 045, Loop: B
No Hookups
Price not available
🚐 046, Loop: B
No Hookups
Price not available

Reviews (178)

What Guests Are Saying

Buttermilk campground receives high praise for its cleanliness, well-maintained restrooms, and friendly hosts, making for a pleasant camping experience. Many reviewers appreciated the spacious campsites and serene atmosphere, especially after peak season, which allowed for enjoyable day trips to nearby attractions. Some concerns were raised about road conditions and noise from the reservoir, but overall, the campground is regarded as a favorite destination for future visits.

Review Summary

4.6
178 reviews
5
70.8%
126
4
20.2%
36
3
6.7%
12
2
0.0%
0
1
2.2%
4

Krissa D

Verified

July 25, 2021 Stayed at: 032, Loop: B

5

Beautiful campground with great spacing between sites. Camp host was kind and helpful. Bathrooms were as clean as non flushing toilets can be (of course you’d always prefer flushing toilets and it would be ideal to have a sink but maybe down the road that will happen)! We had no problem foraging wood for our campfire, just all around a great stay. We will definitely be returning!

Krissa D

Verified

July 25, 2021 Stayed at: 032, Loop: B

5

Beautiful campground with great spacing between sites. Camp host was kind and helpful. Bathrooms were as clean as non flushing toilets can be (of course you’d always prefer flushing toilets and it would be ideal to have a sink but maybe down the road that will happen)! We had no problem foraging wood for our campfire, just all around a great stay. We will definitely be returning!

Misty M

Verified

July 19, 2021 Stayed at: 040, Loop: B

4

The hosts were a little rude. Our neighbor ran a generator all night despite it being against the rules. Otherwise a nice site in beautiful Island Park.

Misty M

Verified

July 19, 2021 Stayed at: 040, Loop: B

4

The hosts were a little rude. Our neighbor ran a generator all night despite it being against the rules. Otherwise a nice site in beautiful Island Park.

Dustie S

Verified

July 16, 2021 Stayed at: 045, Loop: B

5

Loved the campground, the lake and the area! The camp host was great! Camp spots awesome! Plenty of space for larger trailers. We were able to walk to the lake. There were little docks where the kids could jump in. Only one complaint… people can’t seem to read the 10mph signs. Come on! It’s a campground… lots of kids at play. Go slow people!

Dustie S

Verified

July 16, 2021 Stayed at: 045, Loop: B

5

Loved the campground, the lake and the area! The camp host was great! Camp spots awesome! Plenty of space for larger trailers. We were able to walk to the lake. There were little docks where the kids could jump in. Only one complaint… people can’t seem to read the 10mph signs. Come on! It’s a campground… lots of kids at play. Go slow people!

Andrew B

Verified

July 2, 2021 Stayed at: 037, Loop: B

5

Excellent site. Great hosts.

Andrew B

Verified

July 2, 2021 Stayed at: 037, Loop: B

5

Excellent site. Great hosts.

Valerie P

Verified

July 1, 2021 Stayed at: 036, Loop: B

5

Camp host was very nice and helpful.
Restrooms clean

Valerie P

Verified

July 1, 2021 Stayed at: 036, Loop: B

5

Camp host was very nice and helpful.
Restrooms clean

Location Buttermilk

Address:
Buttermilk Loop Rd
Island Park, ID, 83429
United States

Latitude & Longitude: 44.4325 / -111.426

Elevation: 1931 feet

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: June 4, 2026

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