Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona

Online link http://pubs.usgs.gov/of/2001/0122/
Description Point features representing pit locations and attribution data captured from an atlas of map sheets and pit data sheets by the Arizona Highway Department
Originators Hirschberg, Douglas M. (Digital compiler); Pitts, G. Stephen (Digital compiler); Melcher, Henry L. (Digital compiler); and Bliss, James D. (Editor)
Publication U.S. Geological Survey Open-File Report 01-122

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