National Parks and the Lack of Adequate # of Camp Sites

DrewE wrote:

its just me wrote:
How many National Parks do we have? We have traveled thru 40 states and have visited 26 National Parks. We are in our 70's but plan to keep traveling for as long as we can. We plan to go to Shanksville, Pa this summer. I'm not sure if this is a National Park......probably a National Memorial Monument. Happy camping.............

There are 59 National Parks, designated as such, and 413 units associated with/administered by the National Park service. Here is a list (MS Word document from the NPS web site) of all of them with a breakdown by type of designation.