President Trump upgraded Chiricahua National Monument to Chiricahua National Park on October 20, 2026, giving Arizona its fourth national park and the country its 64th. The 19-square-mile site in southeastern Arizona is known for hoodoos formed roughly 27 million years ago and for sky-island ecology mixing Sierra Madre and Rocky Mountain species. The discussion so far is mostly appreciation of the rock formations and the remote location, with little contest over the designation itself.