Labels:text | map OCR: USGS science for a changing world Map Showing Geology, Oil and Gas Fields, and Geologic Provinces of Iran Compiled by R.M. Pollastro1, F.M. Persits2, and D.W. Steinshouer2 1 U.S. Geological Survey, Denver, CO 2Contractor to the U.S. Geological Survey, Denver, CO CD-ROM implementation by B.S. Larson Open File Report 97-470-G U.S. Department of Interior Version 1.0 U.S. Geological Survey 1999