Digital Geologic Map of Golden Spike National Historic Site and Vicinity, Utah (NPS, GRD, GRE, GOSP)

The Digital Geologic Map of Golden Spike National Historic Site and Vicinity, Utah is composed of GIS data layers, two ancillary GIS tables, a Windows Help File with...犹他州金穗国家历史遗址及周边地区数字地质图由地理信息系统（Geographic Information System，GIS）数据图层、两个辅助地理信息系统数据表以及一份附带……的Windows帮助文件组成。