The history of the Nez Perce people and their relationship to North American history are preserved and interpreted here. Four federally-owned sites are administered by the National Park Service and 20 by cooperative agreements. Legislation in late 1992 allowed for the addition of 14 more related sites in Montana, Oregon,and Washington.

Authorized May 15,1965. Boundary change Oct. 30, 1992.

Acreage: 2,109.61
Federal: 1,833.71
Nonfederal: 275.90