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You searched for: PLSS Remove constraint PLSS Author Illinois State Geological Survey Remove constraint Author: Illinois State Geological Survey
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1.
Public Land Survey System (PLSS) Boundaries: Illinois, 2003

Public Land Survey System (PLSS) Boundaries: Illinois, 2003

1968-1979. Illinois State Geological Survey. This data set contains Illinois Public Land Survey System (PLSS) boundaries and designations in line and polygon feature classes. THESE DATA HAVE P...

2.
PLSS Townships: Illinois, 2003

PLSS Townships: Illinois, 2003

1968-1979. Illinois State Geological Survey. This dataset contains townships from the Illinois Public Land Survey System in line and polygon form. Line attributes identify state, township and ...

3.
PLSS Indian Treaty Boundary Lines: Illinois, 2003

PLSS Indian Treaty Boundary Lines: Illinois, 2003

1968-1979. Illinois State Geological Survey. This data set contains Indian Treaty boundary lines from the Illinois Public Land Survey System. The nominal scale is 1:62,500. As of 2003, the dat...

4.
State Boundary: Illinois, 2003

State Boundary: Illinois, 2003

1968-1979. Illinois State Geological Survey. This data set contains the Illinois state boundary in line and polygon format. There are two versions of the data included: one that includes the o...

5.
Structural Features: Illinois, 1995

Structural Features: Illinois, 1995

1995. Illinois State Geological Survey. This feature dataset is a representation of Plate 1 from ISGS Bulletin 100 (1993) by W. John Nelson. Features depicted are limited to well document...

6.
Polygon

Stack-Unit Mapping of Geologic Materials to a Depth of 15 Meters: Illinois, 2004

1995. Illinois State Geological Survey. This is an SDE polygon feature class containing stack-unit map designations for Illinois. The primary source is ISGS Circular 542, Stack-unit Mappi...

7.
Bedrock Geology: Illinois, 2005

Bedrock Geology: Illinois, 2005

2005. Illinois State Geological Survey. This feature dataset shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the map Bedrock G...

8.
Bedrock Geology of Illinois - Geologic Units, 2004

Bedrock Geology of Illinois - Geologic Units, 2004

1996. Illinois State Geological Survey. This feature class shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the Geologic Map of...

9.
County Boundaries: Illinois, 2003

County Boundaries: Illinois, 2003

1968-1979. Illinois State Geological Survey. This data set contains Illinois county boundaries in line and polygon formats. The polygon attribute data include county name and number (FIPS) des...

10.
Driftless Areas: Illinois, 2004

Driftless Areas: Illinois, 2004

1994. Illinois State Geological Survey. This is a polygon feature class containing driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface i...

11.
Glacial Drift: Thickness and Character: Illinois, 2004

Glacial Drift: Thickness and Character: Illinois, 2004

1994. Illinois State Geological Survey. This is an SDE feature dataset showing drift thickness in Illinois. Data are originally from ISGS Circular 490 by Piskin and Bergstrom (1975), Plat...

12.
Historical Aerial Photography: Illinois, 1937-1947

Historical Aerial Photography: Illinois, 1937-1947

1936-1941. Illinois State Geological Survey. The primary data set consists of historical black and white aerial photographs from Illinois acquired during 1936 to 1941. Alternative years of pho...

13.
Major Bedrock Valleys: Illinois, 2004

Major Bedrock Valleys: Illinois, 2004

1994. Illinois State Geological Survey. This feature dataset shows continuous lines representing the lowermost elevations/locations of (buried) bedrock valleys in the state of Illinois. A...

14.
Mosaic of Des Plaines Watershed, IL/WI - TerraSource Orthorectified Imagery, 2000

Mosaic of Des Plaines Watershed, IL/WI - TerraSource Orthorectified Imagery, 2000

2000. Illinois State Geological Survey and ImageAmerica. Note: The original metadata file was written by ImageAmerica. There are a few additions by ISGS required for archival and access in the Survey's en...

15.
Mosaic of Digital Orthophoto Quadrangles in UTM Zone 16, NAD83 Photography: Illinois, 2005

Mosaic of Digital Orthophoto Quadrangles in UTM Zone 16, NAD83 Photography: Illinois, 2005

2005. U.S. Geological Survey, Surdex Corporation and Science Applications International Corporation (SAIC), and Illinois State Geological Survey. This data set is an SDE raster mosaic of DOQs from year 2005 that occur within the UTM Zone 16 portion of Illinois. The data are stored in the 'as ...

16.
Mosaic of Illinois 7.5-minute Digital Raster Graphic (DRG) Images, 2003

Mosaic of Illinois 7.5-minute Digital Raster Graphic (DRG) Images, 2003

2003. Illinois State Geological Survey. This is a statewide ArcSDE Raster Mosaic of USGS DRG images of 7.5-minute topographic quadrangles occurring in Illinois. These are unmodified DRG i...

17.
Municipal Boundaries: Incorporated Places: Illinois, 2000

Municipal Boundaries: Incorporated Places: Illinois, 2000

2006. US Census and Illinois State Geological Survey. This polygon feature class shows incorporated places and census designated places in Illinois as of the 2000 US census. The data are identical to t...

18.
Physiographic Divisions: Illinois, 2004

Physiographic Divisions: Illinois, 2004

1993. Illinois State Geological Survey. This is an ESRI feature class showing boundaries for physiographic divisions in Illinois. Data are originally from ISGS Report of Investigations 12...

19.
Quaternary Deposits: Illinois, 1979

Quaternary Deposits: Illinois, 1979

1979. Illinois State Geological Survey. Digital representation of the Quaternary Deposits in Illinois map by Lineback (1979). Map scale is 1:500,000. Shows Quaternary deposits that lie at...

20.
Polygon

Soil Associations Map (500K): Illinois, 2004

1984. Illinois State Geological Survey. This is a polygon feature class showing soil associations in Illinois, from the General Soil Map of Illinois (Fehrenbacher, 1982). Created in 1984 ...