Massacre Rocks State Park

Quick Facts

Massacre Rocks State Park


(208) 548-2672

Map Directions

Things To Do


Oregon Trail emigrants referred to the Massacre Rocks area as "Gate of Death" and "Devil's Gate", but modern day travelers use terms like beautiful, serene, and restful to describe the park. The park is rich in Oregon Trail, geological, and natural histories.

Rich in history, pioneers used this area, specifically what is now referred to as "Register Rock" as a rest stop for years. Horse owners are invited to water and rest their animals in the corral at Register Rock. Many emigrant names are inscribed on the large rock, which is now protected by a weather shelter. A scenic picnic area surrounds the rock, creating a desert oasis for the modern traveler. The site also includes a horse rest area for highway travelers.

Oregon Trail remnants are most easily seen from highway rest areas in either end of the park. For additional information on the Oregon Trail visit the Three Island Crossing State Park page and the Oregon/California Trail Center website.

Map of Massacre Rocks (ID)

Latitude, Longitude: 42.676920, -112.986400



  • Boating

    Ramps and docks available for use.

  • Bicycling

    Great trails in the area for hiking and biking.

  • Camping

    Electricity, max 55' sites, firewood, cabins, showers, flush toilets, camp store, dump station, horse rest area

  • Climbing

    Climbing opportunities nearby.

  • Fishing

    Great fishing opportunities.

  • Hiking

    Great trails in the area for hiking and biking.

  • Historic Sites

    Guided walks , programs , education center



Massacre Rocks is in Southeast Idaho off of Hwy. 86, at exit 28 near between American Falls and Raft River.

Phone Numbers


(208) 548-2672

Campground reservations

(888) 922-6743