BLM AK Administrative Unit Boundary (Polygon)

This polygon feature class represents the spatial extent of active BLM Alaska Administrative Unit Boundaries at the State, District, and Field Office levels.本多边形要素类（Polygon Feature Class）表征了美国土地管理局（Bureau of Land Management, BLM）阿拉斯加分局州级、区级及野外办公室层级的当前有效行政单元边界的空间范围。