1977 DEM for Sleeping Bear Point at Sleeping Bear Dunes National Lakeshore

This raster dataset describes elevation values, in meters (m), in Sleeping Bear Dunes National Lakeshore in 1977. The 1977 DEM was produced from historical aerial...本栅格数据集（raster dataset）记录了1977年睡熊沙丘国家湖岸（Sleeping Bear Dunes National Lakeshore）的海拔值，单位为米（m）。该1977年数字高程模型（Digital Elevation Model，DEM）由历史航空……制作。