National+Park+Service

excerpt from internet:
 * The** **National Park Service (****NPS) is the [|United States] federal agency that manages all [|National Parks], many [|National Monuments], and other conservation and historical properties with various title designations.[|[1]] It was created on [|August 25], [|1916], by [|Congress] through the National Park Service Organic Act[|[2]] in order to protect areas designated as national parks.**

it's a governmental organization in US that protects and manages enviornment of national parks