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Geologic map of the Tucson and Nogales quadrangles (Arizona, scale 1:250,000): A digital database

April 1, 2003

The geologic map of the Tucson-Nogales 1:250,000 scale quadrangle (Peterson and others, 1990) was digitized by U.S. Geological Survey staff and University of Arizona contractors at the Southwest Field Office, Tucson, Arizona, in 2000 for input into a geographic information system (GIS). The database was created for use as a basemap in a decision support system designed by the National Industrial Minerals and Surface Processes project. The resulting digital geologic map database can be queried in many ways to produce a variety of geologic maps. Digital base map data files (topography, roads, towns, rivers and lakes, etc.) are not included; they may be obtained from a variety of commercial and government sources. Additionally, point features, such as strike and dip, were not captured from the original paper map and are not included in the database. This database is not meant to be used or displayed at any scale larger than 1:250,000 (for example, 1:100,000 or 1:24,000). The digital geologic map graphics and plot files that are provided in the digital package are representations of the digital database. They are not designed to be cartographic products.

Citation Information

Publication Year 2001
Title Geologic map of the Tucson and Nogales quadrangles (Arizona, scale 1:250,000): A digital database
DOI 10.3133/ofr01275
Authors J. A. Peterson, J. R. Berquist, S. J. Reynolds, S. S. Page-Nedell, Gustav P. Oland, Douglas M. Hirschberg
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 2001-275
Index ID ofr01275
Record Source USGS Publications Warehouse
USGS Organization Geology, Minerals, Energy and Geophysics Science Center