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activities Administration Alaska Alaska Pipeline areas assessment basins Bldg budget Bureau of Land cartographic City coal Colorado Commission County Denver Denver Federal Center Department deposits Direct program dollars drilling Earth earth-science earthquake environmental impact environmental impact statements EROS Data estimates evaluation Federal agencies Federal and Indian fiscal year 1975 flood geophysical geothermal ground water ground-water hazards hydrologic increased Indian lands Information and Analysis Investigations Land Information Land Management land-use Landsat ment meters metric million mining National Center Office U.S. oil and gas oil shale operations Outer Continental Shelf percent petroleum pipeline planning potential production quadrangle regional Reimbursable program reports Reston rocks royalty seismic Service share sources square kilometers square miles studies subactivity surface Survey's Surveys and Mapping TABLE techniques tion topographic maps Total transition quarter U.S. Geol U.S. Geological Survey United urban volcanic Water Data Water Resources Division