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| USGS Western Region |
USGS Home Page Ask-a-Geologist Office of the Regional Hydrologist, Western Region Water Resources of California Pacific Marine Geology Western Region Geologic Information Server San Francisco Bay Area Regional Database (BARD) Western Mapping Center (WMC) Pasadena Field Office Flagstaff Field Center Alaska Home Page EROS Alaska Field Office Water Resources of Alaska Water Resources of Idaho Water Resources of Oregon Water Resources of Nevada Water Resources of Utah Water Resources of Washington
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