tag:digital.library.illinois.edu,2005:/itemsItems2022-09-15T18:31:57Ztag:digital.library.illinois.edu,2005:Item/667362016-11-15T17:23:52Z2022-09-15T18:31:18ZIllinois, Carlyle quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699212016-11-30T19:19:19Z2022-09-15T18:31:47ZIllinois, Vermont quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667392016-11-15T17:23:54Z2022-09-15T18:31:18ZIllinois-Indiana, Milford quadrangle : 15-minute seriesSurveyed in 1938.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/700962016-11-30T19:20:17Z2022-09-15T18:31:56ZIllinois (Champaign County), Urbana quadrangle : topographyContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667412016-11-15T17:23:56Z2022-09-15T18:31:18ZIllinois, Waterloo quadrangle : topographyContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699312016-11-30T19:19:22Z2022-09-15T18:31:48ZIllinois, Kankakee quadrangleContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668242016-11-15T17:24:29Z2022-09-15T18:31:22ZIllinois, Orion quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667502016-11-15T17:24:02Z2022-09-15T18:31:18ZIllinois, Prophetstown quadrangleContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667532016-11-15T17:24:04Z2022-09-15T18:31:19ZIllinois, Rushville quadrangleContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667542016-11-15T17:24:05Z2022-09-15T18:31:19ZSailor Springs quadrangle, Illinois : 15 minute seriesContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699422016-11-30T19:19:25Z2022-09-15T18:31:48ZIllinois, Lacon sheetContour interval 20 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/667582016-11-15T17:24:08Z2022-09-15T18:31:19ZIllinois, Genoa quadrangleContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699522016-11-30T19:19:28Z2022-09-15T18:31:49ZThe topographic maps of the United States [standard symbols]Chart of standard map symbols used on U.S. topographic maps.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668262016-11-15T17:24:29Z2022-09-15T18:31:22ZHutsonville quadrangle, Illinois-Indiana : 15 minute seriesRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag: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/667692016-11-15T17:24:11Z2022-09-15T18:31:19ZIllinois-Iowa, Oquawka quadrangleContour intervals 10 and 20 feet changing on the 580 foot contour.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/700452016-11-30T19:20:02Z2022-09-15T18:31:53ZIllinois, Potomac quadrangleContour interval 10 feet.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/700612016-11-30T19:20:07Z2022-09-15T18:31:54ZIllinois-Iowa, Keithsburg quadrangleContour intervals 10 and 20 feet changing on the 580 foot contour.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/700682016-11-30T19:20:09Z2022-09-15T18:31:55ZIllinois, Metamora sheetSurveyed in 1891.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/700382016-11-30T19:19:59Z2022-09-15T18:31:53ZIllinois, Virginia quadrangleContour interval 10 feet.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/668912016-11-15T17:24:43Z2022-09-15T18:31:27ZIllinois, Havana quadrangleRelief shown by contours and spot heights.University of Illinois at Urbana-Champaign Librarytag:digital.library.illinois.edu,2005:Item/699982016-11-30T19:19:47Z2022-09-15T18:31:51ZIllinois, Geneva quadrangleSurveyed in 1928-1929.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/664772016-11-15T17:22:13Z2022-09-15T18:31:01ZIllinois, Jerseyville quadrangleRelief shown by contours and spot heights.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/667992016-11-15T17:24:23Z2022-09-15T18:31:21ZMissouri-Illinois-Kentucky, Wickliffe quadrangle : grid zone 'C'Relief shown by contours and spot heights.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 Library