LEADER 01539oam 2200433Ia 450 001 9910695888203321 005 20070508090825.0 035 $a(CKB)5470000002372905 035 $a(OCoLC)76953121 035 $a(EXLCZ)995470000002372905 100 $a20061212d2006 ua 0 101 0 $aeng 135 $aurmn||||m|||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aTaking the pulse of a river system, first 20 years$b[electronic resource] 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2006] 215 $a4 unnumbered pages $cdigital, PDF file 225 1 $aFact sheet ;$v2006-3098 300 $aTitle from PDF title screen (viewed on Dec. 12, 2006). 300 $aAt head of title: Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin. 300 $a"June 2006." 320 $aIncludes bibliographical references. 606 $aEnvironmental monitoring$zMississippi River 606 $aEnvironmental monitoring$zMiddle West 606 $aFreshwater ecology$zMississippi River 615 0$aEnvironmental monitoring 615 0$aEnvironmental monitoring 615 0$aFreshwater ecology 712 02$aUpper Midwest Environmental Sciences Center (Geological Survey) 712 02$aGeological Survey (U.S.) 801 0$bGIS 801 1$bGIS 801 2$bGPO 906 $aBOOK 912 $a9910695888203321 996 $aTaking the pulse of a river system, first 20 years$93183597 997 $aUNINA