BLM NV NLCS Nevada National Monuments National Conservation Areas and Similar Designations Polygons

This polygon feature class represents the spatial extent and boundaries of the BLM National Landscape Conservation System (NLCS) National Monuments, National...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）国家景观保护系统（National Landscape Conservation System, NLCS）所辖国家纪念地及其他未完整列出的国家级保护地的空间范围与边界。