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You searched for: Resource Type Polygon data Remove constraint Resource Type: Polygon data Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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55. Index of USGS 100,000 Scale Quadrangles: Indiana

Purdue University purdue-university
1999. United States Geological Survey. This dataset shows the grid index of USGS 100K quadrangles. Each polygon is attributed with the official USGS quadrangle name and index number. State of Indiana.

56. Index of USGS 250,000 Scale Quadrangles: Indiana

Purdue University purdue-university
1999. United States Geological Survey. This dataset shows the grid index of USGS 250K quadrangles. Each polygon is attributed with the official USGS quadrangle name and index number. State of Indiana.

57. Political Townships [Illinois], 2009

Datasets datasets University Of Illinois Urbana Champaign university-of-illinois-urbana-champaign
1985. Tom Heavisides, Office of Realty and Environmental Planning, Illinois Department of Natural Resources, and Illinois State Geological Survey. Political (voting) township boundaries of Illinois as of 1985. Attributes include the name, FIPS code, township name and number. OREP 1985. Illinois State Geological Survey.

59. Soil Associations Map (500K) [Illinois]

Datasets datasets University Of Illinois Urbana Champaign university-of-illinois-urbana-champaign
1984. Illinois State Geological Survey. Soil associations in Illinois. A soil association is a group of related soil series that generally occur in a characteristic pattern of landscapes ... Illinois State Geological Survey.

60. Stack-Unit Mapping of Geologic Materials to a Depth of 15 Meters [Illinois]

Datasets datasets University Of Illinois Urbana Champaign university-of-illinois-urbana-champaign
1995. Illinois State Geological Survey. Stack-Unit mapping of geologic materials to a depth of 15 meters. Stack-unit maps show the distribution of earth materials vertically from the surf... Illinois State Geological Survey.