The National Park Service (NPS) administers the National Park System, which covers 84.6 million acres of land and consists of 410 diverse units valued for their natural, cultural, and recreational importance. NPS receives appropriations in the annual Interior, Environment, and Related Agencies appropriations bill. This book discusses NPS appropriations for FY2016 and examines trends in the agency’s discretionary appropriations over the past decade (FY2007-FY2016); changes in the size of the National Park System, numbers of recreation visits to the parks, and NPS staffing levels during that period; and budget data for fiscal years 2005 through 2014 on the Park Service’s overall funding and fee revenue and donations.