Digital Geologic-GIS Map of the Garfield Quadrangle, Arkansas and Missouri (NPS, GRD, GRI, PERI, GARF digital map) adapted from a Arkansas Geological Survey Digital Geologic Quadrangle Map by Chandler and Ausbrooks (digital compilation by Mayfield) (2009)

The Digital Geologic-GIS Map of the Garfield Quadrangle, Arkansas and Missouri is composed of GIS data layers and GIS tables, and is available in the following GRI-...阿肯色州与密苏里州加菲尔德四等分图幅（Garfield Quadrangle）数字地质地理信息系统（Geographic Information System，GIS）地图由GIS数据图层与GIS数据表组成，可通过下述GRI-...格式获取。