Publication Date 2001 Citation Arizona Geological Survey Digital Geologic Map Series DGM-12, v. 1.1, 1 CD-ROM, (29p., 1 sheet, scale 1:24,000). State AZ Province BR County PM Placenames Cienega Gap area Rincon Valley Tucson Basin Basins Tucson Ama Watersheds Santa Cruz River Keywords Map Bedrock Surficial Digital More Keywords Map, Bedrock, Surficial, Digital, AzGeoBib RefNum 16057