Register Rock

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Register Rock
Register Rock is located in Idaho
Register Rock
Register Rock is located in the United States
Register Rock
LocationWest of American Falls on U.S. Route 30
Nearest cityAmerican Falls, Idaho
Coordinates42°39′10″N 113°0′58″W / 42.65278°N 113.01611°W / 42.65278; -113.01611Coordinates: 42°39′10″N 113°0′58″W / 42.65278°N 113.01611°W / 42.65278; -113.01611
Arealess than one acre
NRHP reference No.78001097[1]
Added to NRHPJuly 24, 1978

Register Rock, near American Falls, Idaho, is a historic site where many Oregon Trail emigrants carved their names on a rock. The rock is located in what is now Massacre Rocks State Park and is now protected by a shelter.[2]

It is located west of American Falls on U.S. Route 30. It was listed on the National Register of Historic Places in 1978.[1]


  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
  2. ^ "Idaho Adventures in Living: Massacre Rocks State Park".