| snippet:
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Illinois Public Land Survey System (PLSS) boundaries and designations in line and polygon feature classes. The polygon attribute data include meridian, township, range, section and county number (FIPS) designations. The line attributes indicate line type, including the state line, county lines, township and range lines, section lines, Indian treaty boundaries, base lines, principal meridians, and boundaries between areas mapped from different principal meridians. (ISGS, 2003). THESE DATA HAVE POSITIONAL INACCURACY OF UP TO 600 FEET IN SOME AREAS OF THE STATE. THEY ARE NOT TO BE USED AT SCALES GREATER THAN 1:62,500. THE DATA ARE NOT APPROPRIATE AS A GEODETIC, LEGAL OR ENGINEERING BASE. |
| summary:
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Illinois Public Land Survey System (PLSS) boundaries and designations in line and polygon feature classes. The polygon attribute data include meridian, township, range, section and county number (FIPS) designations. The line attributes indicate line type, including the state line, county lines, township and range lines, section lines, Indian treaty boundaries, base lines, principal meridians, and boundaries between areas mapped from different principal meridians. (ISGS, 2003). THESE DATA HAVE POSITIONAL INACCURACY OF UP TO 600 FEET IN SOME AREAS OF THE STATE. THEY ARE NOT TO BE USED AT SCALES GREATER THAN 1:62,500. THE DATA ARE NOT APPROPRIATE AS A GEODETIC, LEGAL OR ENGINEERING BASE. |
| extent:
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[[-91.5135249982257,36.9699787846838],[-87.4952193321435,42.5083557162683]] |
| accessInformation:
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Illinois State Geologic Survey, 2003 |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
| description:
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The data were digitized in the late 1960s, early 1970s, and in 1984-85 from 7.5- and 15-minute USGS topographic quadrangles. Errors in the location of a given feature are dependent on the accuracy of the original maps and on the accuracy of digitizing. Estimates are that features have an average locational error of approximately plus/minus 100 feet. Some areas of the state have a locational error of approximately 600 feet.
In areas of French colonization land grants, where PLSS sections were not actually surveyed, sections and section lines have been added (estimated). |
| licenseInfo:
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These data are appropriate for use as an index and in local and regional thematic analysis. The data are not appropriate as a geodetic, legal or engineering base. The data set was originally created for the purpose of producing maps of well locations in Illinois for geologic research by the ISGS and others. It serves as an important base cartographic element for many types of maps and has been widely distributed and used outside the ISGS. The data set was not and is not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS as a reference base layer for maps, the data set has no legal basis in the definition of boundaries or property lines. |
| catalogPath:
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|
| title:
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PLSS_Public_Land_Survey_System |
| type:
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Map Service |
| url:
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|
| tags:
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["PLSS","Public Land Survey System","Illinois","Township","Range","Section","ISGS"] |
| culture:
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en-US |
| name:
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PLSS_Public_Land_Survey_System |
| guid:
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7283C1A9-5AA6-4C1A-BF7B-0BD8A508AED2 |
| minScale:
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0 |
| spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |