Big Hole National Battlefield is a unique unit in the National Park Service. This park is one of thirty-eight sites that is part of Nez Perce National Historical Park. Unlike other sites that have a contiguous block of land, Nez Perce National Historical Park stretches across Oregon, Idaho, Washington, and Montana. Of the park's thirty-eight sites, the National Park Service owns nine and each one offers its own set of challenges and opportunities.
For more information on how the park developed, please take a look at the battlefield's administrative history. Press the link below and the entire document is available.