01648oem 2200481 450 991070389560332120150731162742.0(CKB)5470000002434771(OCoLC)911403224(EXLCZ)99547000000243477120150623d2015 ca engb|||||||||||||||||||||durcn|||||||||crirdacontentcrdamediacrrdacarrierBathymetric survey of Lake Calumet, Cook County, Illinois /by James J. Duncker, Kevin K. Johnson, and Jennifer B. Sharpe ; prepared in cooperation with the Great Lakes Restoration Inititiative[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,2015.1 online resource (1 map) colorScientific investigations map ;3330Depths shown by gradient tints.Title from title screen (viewed on June 22, 2015).Includes text, location map, and hydrograph.Calumet Lake (Ill.)MapsMaps.fastBathymetric maps.lcgftMaps.lcgftDuncker James J.1406642Johnson Kevin K.Sharpe Jennifer B.Great Lakes Restoration Initiative (U.S.),Geological Survey (U.S.),GPOGPOLDLGPOBOOK9910703895603321Bathymetric survey of Lake Calumet, Cook County, Illinois3546021UNINA