BLM ES Administrative Unit Office Arc

This polyline feature class represents the spatial extent of active Bureau of Land Management (BLM) Administrative Unit Boundaries at the State, District, and Field...本折线要素类（polyline feature class）表征了现行有效的美国土地管理局（Bureau of Land Management, BLM）州级、区级及野外作业单元级行政单元边界的空间范围……