The birthday of the National Park Service is August 25. On that day there is no entry fee at the U.S. National Parks that usually charge one. Arizona has 3 National Parks. Joshua Tree NP is listed as being in AZ but it is in California. I have contacted the NPS to confirm this. Grand Canyon National Park I have visited this park. Petrified Forest National Park I have visited this park. Saguaro National Park I haven't been here yet. What Arizona or other National Parks have you visited?
