Protecting resources and enforcing park regulations are difficult at Nez Perce National Historical Park, in part, because the park is spread across four states.
In spite of the geographic challenges, cultural resources at the park are in fair condition, with an overall rating of 75 out of 100. Archaeological resources and ethnography scored particularly well at 85 and 82 out of 100, respectively. Park stewardship of cultural resources has provided adequate protection and no particular resource is in danger at the current time. Natural resources, conversely, are in poor condition, scoring 59 out of 100.