国家公园是美国自然文化的珍宝和历史遗产。全美国家公园管理局管辖的有337个国家公园,占地面积约3190万公顷,几乎占国土总面积的3%。国家公园归国家公园管理局管理,其它一些如纪念堂、历史遗迹、纪念碑、娱乐场地、湖滨、公园大道、风景小径、古战场、公墓和风景河流,几乎也都由国家公园管理局管理。历史与人类历史的长河相比较,国家公园的出现是短暂的。从所有公民的利益出发修建公共 National Park is a treasure and historical heritage of the United States natural and cultural. The National Parks Authority has 337 national parks under its jurisdiction and covers an area of ​​about 31.9 million hectares, accounting for almost 3% of the total land area. National Parks are administered by the National Park Service, and others such as memorial halls, monuments, monuments, entertainment venues, lakeside, park avenues, scenic trails, ancient battlefields, cemeteries and scenic rivers are almost all managed by the National Park Service. History Compared with the long history of human history, the emergence of national parks is short-lived. Public interest is set from the perspective of all citizens