Johnstown Flood National Memorial Tract and Boundary Data

These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the...本批ESRI形状文件（ESRI Shapefile）包含由土地资源分部编制的美国国家公园管理局地块与边界数据。所有地块均已完成编号，且由……创建。