01353nam 2200349Ia 450 991070220620332120130114110224.0(CKB)5470000002426091(OCoLC)820028007(EXLCZ)99547000000242609120121203d2012 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierStructures data collection for The National Map using volunteered geographic information[electronic resource] /by Barbara S. Poore ... [and others]Reston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2012.1 online resource (ii, 30 pages) color illustrations, color mapsOpen-file report ;2012-1209Title from title screen (viewed on Dec. 3, 2012).Includes bibliographical references (pages 28-29).Geographic information systemsUnited StatesGeographic information systemsPoore Barbara S(Barbara Shepherd)1390431Geological Survey (U.S.)GPOGPOBOOK9910702206203321Structures data collection for The National Map using volunteered geographic information3443105UNINA