tag:digital.library.illinois.edu,2005:/items/a6fd58a0-994e-0134-2096-0050569601ca-1Illinois-Wisconsin, McHenry quadrangle2022-09-15T18:31:55Ztag:digital.library.illinois.edu,2005:Item/700842016-11-30T19:20:13Z2022-09-15T18:31:55ZIllinois-Wisconsin, McHenry quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Library