Digital Surficial Geologic Map of parts of the Powell 30' x 60' Quadrangle, Wyoming (NPS, GRD, GRE, BICA)

The Digital Surficial Geologic Map of parts of the Powell 30' x 60' Quadrangle, Wyoming is composed of GIS data layers, two ancillary GIS tables, a Windows Help File...怀俄明州鲍威尔30'×60'图幅部分区域的数字地表地质图，由地理信息系统（Geographic Information System，GIS）数据图层、两个辅助GIS数据表以及一份Windows帮助文件等组成。