02135oam 2200577 450 991071208960332120190510110109.0(CKB)5470000002489202(OCoLC)835906745(EXLCZ)99547000000248920220130405d2013 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierDigital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado /B.J. Drenth [and four others]Reston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2013.1 online resource (2 volumes) illustrations (some color)Open-file report ;2013-1011Title from title screen (viewed Apr. 5, 2013)."TFBSO, Task Force for Business and Stability Operations."Includes bibliographical references.Aerial photogrammetryColoradoGreat Sand Dunes National Park and PreserveGroundwaterColoradoGreat Sand Dunes National Park and PreserveGeological surveysColoradoGreat Sand Dunes National Park and PreserveAerial photogrammetryfastGeological surveysfastGroundwaterfastColoradoGreat Sand Dunes National Park and PreservefastAerial photogrammetryGroundwaterGeological surveysAerial photogrammetry.Geological surveys.Groundwater.Drenth Benjamin J.1395951Geological Survey (U.S.),U.S. Task Force for Business and Stability Operations,GPOGPOOCLCQOCLCFLWAINTOCLCQGPOBOOK9910712089603321Digital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado3522629UNINA