TY - BOOK ID - 145366049 TI - Digital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado AU - Drenth, Benjamin J. AU - Geological Survey (U.S.) AU - U.S. Task Force for Business and Stability Operations PY - 2013 PB - Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, DB - UniCat KW - Aerial photogrammetry KW - Groundwater KW - Geological surveys KW - Aerial photogrammetry. KW - Geological surveys. KW - Groundwater. KW - Colorado UR - https://www.unicat.be/uniCat?func=search&query=sysid:145366049 AB - ER -