Geologic Map of the Tucson and Nogales Quadrangles, Arizona, Scale 1: 250,000: A Digital Database: Usgs Open-File Report 2001-275 - Paperback

by United U. S. Department of the Interior (Created by), Et Al (Created by), J. a. Peterson (Author)

The Tucson-Nogales dataset was digitized by U.S. Geological Survey staff and contractors in the Southwest Field Office, Tucson, Arizona for input into an ArcInfo geographic information system (GIS); point features, such as strike and dip, were not captured.