01341oam 2200409 450 991070802530332120180426124750.0(CKB)5470000002470260(OCoLC)1030440278(OCoLC)995470000002470260(EXLCZ)99547000000247026020180404d2014 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe 3D Elevation Program summary for Illinois /William J. Carswell, JrReston, VA :U.S. Department of the Interior, U.S. Geological Survey,2014.1 online resource (2 unnumbered pages) color illustrations, color mapFact sheet ;2014-3086"September 2014."Includes bibliographical references (page 2).3D Elevation Program Digital elevation modelsIllinoisThree-dimensional imagingIllinoisDigital elevation modelsThree-dimensional imagingCarswell William J.1387067Geological Survey (U.S.),GPOGPOGPOBOOK9910708025303321The 3D Elevation Program3436533UNINA