LEADER 01298oam 2200385Ia 450 001 9910696713003321 005 20080717103245.0 035 $a(CKB)5470000002381746 035 $a(OCoLC)86078366 035 $a(EXLCZ)995470000002381746 100 $a20070320d2007 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aResearch furthers conservation of Grand Canyon sandbars$b[electronic resource] /$f[by Theodore S. Melis ... and others] 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2007] 215 $a4 unnumbered pages $cdigital, PDF file 225 1 $aFact sheet ;$v2007-3020 300 $aTitle from title screen (viewed on July 16, 2008). 300 $a"March 2007." 320 $aIncludes bibliographical references. 606 $aSand bars$zArizona$zGrand Canyon 607 $aColorado River (Colo.-Mexico)$xRegulation 615 0$aSand bars 701 $aMelis$b Theodore S$01381361 712 02$aGeological Survey (U.S.) 801 0$bGIS 801 1$bGIS 801 2$bGPO 906 $aBOOK 912 $a9910696713003321 996 $aResearch furthers conservation of Grand Canyon sandbars$93542077 997 $aUNINA