tag:digital.library.illinois.edu,2005:/itemsItems2022-09-15T18:31:55Ztag:digital.library.illinois.edu,2005:Item/699592016-11-30T19:19:31Z2022-09-15T18:31:49ZIllinois-Wisconsin (Winnebago County), Rockford quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668932016-11-15T17:24:43Z2022-09-15T18:31:27ZMaroa quadrangle, Illinois : 15 minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669012016-11-15T17:24:47Z2022-09-15T18:31:27ZFlora quadrangle, Illinois : 15 minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700512016-11-30T19:20:04Z2022-09-15T18:31:54ZIowa-Illinois, Muscatine quadrangle : 15-minute seriesContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700562016-11-30T19:20:05Z2022-09-15T18:31:54ZIllinois-Iowa, Edgington quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669032016-11-15T17:24:47Z2022-09-15T18:31:27ZIllinois (Stephenson County) Freeport quadrangle : 15-minute seriesRoad classification as of 1944.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669052016-11-15T17:24:49Z2022-09-15T18:31:27ZIllinois, St. Elmo quadrangle : 15-minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700662016-11-30T19:20:08Z2022-09-15T18:31:54ZIllinois, Ashley quadrangleMapped by the Geological Survey 1942-1943.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700692016-11-30T19:20:09Z2022-09-15T18:31:55ZNewman quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669112016-11-15T17:24:51Z2022-09-15T18:31:28ZOlney quadrangle, Illinois : 15 minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668752016-11-15T17:24:36Z2022-09-15T18:31:26ZIllinois-Missouri, Nebo quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668832016-11-15T17:24:39Z2022-09-15T18:31:26ZMissouri-Illinois, Hannibal quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/664742016-11-15T17:22:12Z2022-09-15T18:31:01ZTeutopolis quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/664752016-11-15T17:22:12Z2022-09-15T18:31:01ZXenia quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667952016-11-15T17:24:21Z2022-09-15T18:31:21ZPeotone quadrangle, Illinois : 15 minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/701092016-11-30T19:20:21Z2022-09-15T18:31:57ZIllinois, La Harpe quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/701252016-11-30T19:20:26Z2022-09-15T18:31:57ZIllinois, Alexis quadrangleSurveyed in 1921 and 1923.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669372016-11-15T17:25:02Z2022-09-15T18:31:29ZWisconsin-Illinois, South Wayne quadrangleContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/701272016-11-30T19:20:27Z2022-09-15T18:31:57ZMendota quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669402016-11-15T17:25:03Z2022-09-15T18:31:29ZCrete quadrangle, Illinois-Indiana : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668072016-11-15T17:24:25Z2022-09-15T18:31:21ZIllinois, Manito quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/664622016-11-15T17:22:07Z2022-09-15T18:31:00ZMinier quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/664672016-11-15T17:22:09Z2022-09-15T18:31:00ZIllinois, Raymond quadrangleContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668082016-11-15T17:24:26Z2022-09-15T18:31:21ZIllinois, Woodhull quadrangle : 15-minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699722016-11-30T19:19:39Z2022-09-15T18:31:50ZMason City quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667712016-11-15T17:24:12Z2022-09-15T18:31:19ZTuscola quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667722016-11-15T17:24:12Z2022-09-15T18:31:19ZIllinois, Marion QuadrangleContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699682016-11-30T19:19:35Z2022-09-15T18:31:50ZMissouri-Illinois, Brussels quadrangleSurveyed in 1927.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700722016-11-30T19:20:10Z2022-09-15T18:31:55ZIllinois, Beardstown quadrangleSurveyed in 1922-1923-1924.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669152016-11-15T17:24:53Z2022-09-15T18:31:28ZIllinois, Casey quadrangle : 15-minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669172016-11-15T17:24:54Z2022-09-15T18:31:28ZIllinois, Sumner quadrangle : topographyRelief shown by contours.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/669212016-11-15T17:24:55Z2022-09-15T18:31:28ZIllinois, Barrington quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/701212016-11-30T19:20:25Z2022-09-15T18:31:57ZMechanicsburg quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700852016-11-30T19:20:14Z2022-09-15T18:31:55ZIllinois, Brighton quadrangleSurveyed in 1922 and 1924-1925.University of Illinois at Urbana-Champaign Library