National Park Service Jurisdiction in the District of Columbia, National Capital Region NPS

These polygon datasets represent the jurisdictional park boundaries for the National Park Service (NPS) units in the District of Columbia. These boundaries are...本多边形数据集（polygon datasets）用于呈现美国哥伦比亚特区内美国国家公园管理局（National Park Service, NPS）所辖园区的公园管辖边界。此类边界为……