Digital Information Series 19 (DI-19), Geologic spatial data for the Roskruge and Waterman Mountains and western Avra Valley area, Pima County, Arizona, is a geospatial database containing information about the geology of the Cocoraque Butte, Three Points, Waterman Peak, and West of Avra 7½-minute quadrangles, and the northern part of the La Tortuga Butte 7½-minute quadrangle. The map extent for this database also includes the southern part of the La Tortuga Butte and the San Pedro 7½-minute quadrangles, but the geologic mapping for this area has not been converted to digital format in this version of DI-19.