tag:digital.library.illinois.edu,2005:/items/978c9b00-82d4-0134-1f08-0050569601ca-bIllinois, Marseilles quadrangle : topography2022-09-15T18:31:22Ztag:digital.library.illinois.edu,2005:Item/668232016-11-15T17:24:28Z2022-09-15T18:31:22ZIllinois, Marseilles quadrangle : topographyRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Library