• Grade context: US
  • Ascents: 2



Access issues inherited from Massacre Rocks State Park

Massacre Rocks is part of the much larger “American Falls Archaeological District” (AFAD). There are multiple land jurisdictions in both the AFAD and where climbing takes place (see BLM Map). Extensive and well documented studies of the AFAD near and around the Snake River show many cultural resources and evidence of human habitation for at least the last 13,000 years. This area is considered sacred to the local Shoshone- Bannock tribes. Be respectful and minimize your footprint and impact in the area. Keep your staging area small and contained. Pick up and pack out your trash including tape, orange or banana peels, cigarette butts, etc. Prevent your dog from digging. Don’t start or make any fires, especially near the base of cliffs.

Also, please, only park in one of the designated parking areas and respect all road closures. Sandy soils in the AFAD are prone to wind erosion. Motorized vehicles and even foot traffic can damage the fragile ecology and could destroy rare, irreplaceable evidence of 13,000 years of human habitation. When hiking to the crags use established trails and don’t short cut or braid existing trails. Use the following graphic from the BLM to understand which areas are closed to motorized travel.

Ethic inherited from Massacre Rocks State Park

The absic infor provided here is from Massacre Rocks Climbing Guide, Updated By: © 2016 Mike Engle, Engle Portal Productions

Updates available at New Route Info: contact Mike Engle @



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Grade Route

Up blocks then pull left to shallow wide chimney

Fun start and spicy finish

Starts on boulder/ledge, goes to chain anchors

Starts on big block, just right of 'Speedy Gonzales', loose-looking block load tested, but as always, assume nothing; climbing can be risky!!

First bolt is high, and has a tag on it

In wide corner

Steep face

On blunt arete

In dihedral, shares anchors with 'Star Spangled Banger'

Up right side of arete

Starts on ramp about 20 feet right of 'Acapulco Cliff Diving', up brown face to corner

Fun steep white face

Short intense route up brown blunt arete

On steep face

Trad route, With fixed cam down low and 1 bolt high

Overhanging white face, around the corner from 'Caca-Mongo'


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