Massacre Rocks State Park encompasses 990 acres along the Snake River, where Idaho Parks and Recreation operates a 44-site campground that accommodates RVs up to 50 feet. The park sits seven miles southwest of American Falls, accessible directly from Interstate 86. Sites feature electric and water hookups, with a free dump station available for RV users year-round.
The campground divides into upper and lower loops, with the lower section providing direct river access and views of the distinctive rock formations that give the park its name. "You definitely want a lower loop site to get away from the freeway noise, plus you will have more shade during peak summer heat," notes Nancy D.. Site 31 stands out as a pull-through with river views, though campers must navigate steep steps to reach the picnic table and fire ring. The upper loop sites experience more highway noise but offer easier access.
Campers can explore multiple trails through the rock formations and along the riverbank, with a visitor center providing Oregon Trail history and geological information. The park includes a disc golf course and fishing access points. "Bring your disc golf, your fishing pole, and your chair for the evenings," suggests Phillip C.. Register Rock, located two miles away in a separate section of the park, displays names carved by Oregon Trail settlers.
The campground operates year-round with reservations available, though water service may be limited during winter months. Restrooms and shower facilities receive consistent praise for cleanliness. Cell service works well for most carriers. Sites are gravel and generally level, though spacing between sites can be tight for larger RVs. The park charges a day-use fee in addition to camping fees.
Description
Located on the mighty Snake River, Massacre Rocks State Park is rich in history and full of year-round recreation.
Miles of hiking trails provide access to a bounty of plant and bird species, Oregon Trail history, and geologic wonders. Rock climbers enjoy numerous routes. A world-class disc golf course provides players with one of the most challenging courses in Idaho. A scenic picnic area surrounds Register Rock, where emigrant names are inscribed, creating a desert oasis for the modern traveler. Remnants of the Oregon Trail are seen easily from either end of the park.
RV Road Trip Guides
Map & DirectionsMassacre Rocks State Park Campground is located in Idaho near Rockland
Directions
3592 N. Park Ln, American Falls, ID 83211 Located off of I-86 at exit #28, 10 miles west of the city of American Falls, Idaho.
Address
3592 N Park Lane
American Falls, ID 83211
Coordinates
42.6784532 N
112.98596367 W
Connectivity
- T-Mobile5GExcellent CoverageVerified by 11 usersLast on 6/13/26
- VerizonLTEGood CoverageVerified by 35 usersLast on 6/13/26
- AT&TLTESome CoverageVerified by 10 usersLast on 6/13/26
Connectivity
- T-Mobile5GExcellent CoverageVerified by 11 usersLast on 6/13/26
- VerizonLTEGood CoverageVerified by 35 usersLast on 6/13/26
- AT&TLTESome CoverageVerified by 10 usersLast on 6/13/26
Access
- Drive-InPark next to your site
- Walk-InPark in a lot, walk to your site.
- Hike-InBackcountry sites.
- Boat-InSites accessible by watercraft.
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
- Cabins
- Yurts
Features
For Campers
- ADA Access
- Trash
- Picnic Table
- Phone Service
- Reservable
- Showers
- Drinking Water
- Electric Hookups
- Toilets
- Alcohol
- Pets
- Fires
For Vehicles
- Sanitary Dump
- Sewer Hookups
- Water Hookups
- Pull-Through Sites
- 30 Amp Hookups
- Big Rig Friendly
Drive Time
- 28 min from Pocatello, ID
- 1 hr 1 min from Idaho Falls, ID
- 1 hr 8 min from Twin Falls, ID
- 1 hr 54 min from Logan, UT















































