01526oam 2200409 450 991070544070332120150618130640.0(CKB)5470000002450981(OCoLC)908560226(EXLCZ)99547000000245098120150507d2012 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierOur Mississippi educational activities about the upper Mississippi River, grades 5-6 /St. Paul District, Rock Island District, St. Louis District U.S. Army Corps of EngineersAlton, Ill. :National Great Rivers Museum,[2012]1 online resource (II, 344 pages) color illustrations, mapsIncludes bibliographical references (pages 339-341).Our Mississippi RiversMississippiEarth sciencesStudy and teaching (Elementary)Mississippi RiverRiversEarth sciencesStudy and teaching (Elementary)National Great Rivers Museum (U.S.),United States.Army.Corps of Engineers.St. Paul District,United States.Army.Corps of Engineers.Rock Island District,United States.Army.Corps of Engineers.St. Louis District,GPOGPOGPOBOOK9910705440703321Our Mississippi3529454UNINA