Sinkhole Areas (an indicator of karst terrain) in Illinois

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: C. P. Weibel

Originator: S. V. Panno

Publication_Date: 1997

Title: Sinkhole Areas (an indicator of karst terrain) in Illinois

Edition: 20040408

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: ISGS GIS Database

Issue_Identification: GISDB_HYDRO.IL_Sinkhole_Areas_Py

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Online_Linkage: <http://www.isgs.illinois.edu/>

Online_Linkage: <http://illinois.edu>

Description:

Abstract:

This feature class shows the distribution of areas that contain one or more sinkholes throughout the state of Illinois. Areas that contain sinkholes are susceptible to aquifer contamination and may also lack the stability required for certain land-uses. Sinkholes are one of the major indicators of karst terrains. This map provides basic data for land-use planning and decision making.

Purpose:

Sinkhole data can be used to appraise local, regional, and general geologic conditions that might affect excavation and construction of roads, pipelines, foundations, and sewers, and construction of wells. These sinkhole data are useful for local planning of surface projects which may have an impact on shallow aquifers. The data are useful for regional land-use planning projects designed to protect shallow karst aquifers. This map may be useful for the exploration and exploitation of limestone. Karstification may have an effect on the evaluation of limestone resources and an impact on the groundwater during limestone extraction.

These data are appropriate for use in regional thematic analysis. The data are not appropriate as a geodetic, legal or engineering base. The datasets were not and are not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS, the data have no legal basis in the definition of boundaries or property lines.

Supplemental_Information:

This is edition 20040408, derived from edition 2.0.

In April 2004 the source coverage was transitioned to storage in an Oracle RDBMS using the ArcSDE geodatabase model. The result (this version) is designated edition 20040408. Prior to this time the feature classe was stored as a coverage in the ISGS GISDB archive.

Edition 2.0 differed from edition 1.0 in that some sinkhole polygons in northwestern Illinois were deleted after field examination suggested that the depressions may have an origination other than by sinkhole formation. In addition, additional sinkhole area polygons were added in southern, southwestern, and western Illinois.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19921103

Ending_Date: 19970203

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -91.4244

East_Bounding_Coordinate: -87.3840

North_Bounding_Coordinate: 42.4951

South_Bounding_Coordinate: 37.1756

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: aquifer

Theme_Keyword: groundwater

Theme_Keyword: water

Theme_Keyword: hydrology

Theme_Keyword: hydrogeology

Theme_Keyword: karst

Theme_Keyword: geology

Theme_Keyword: sinkhole

Theme_Keyword: bedrock

Theme_Keyword: hazard

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Illinois

Access_Constraints:

ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current.

Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice.

Links to these are provided in the Cross References section.

Use_Constraints:

This feature class is for use at a scale of 1:100,000.

ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved.  University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4. A link is provided in the Cross References section.

Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage.

Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section.

Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data.  Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor.

The data do not replace the need for detailed site-specific studies.

Point_of_Contact:

Contact_Information:

Contact_Instructions: Please refer to the Distribution Information section.

Native_Data_Set_Environment: ArcSDE 9.1 on Oracle 10g

Cross_Reference:

Citation_Information:

Title: ISGS Terms of Use

Online_Linkage: <http://www.isgs.illinois.edu>

Cross_Reference:

Citation_Information:

Title: University of Illinois Web Privacy Notice

Online_Linkage: <http://www.vpaa.uillinois.edu/policies/web_privacy.cfm>

Cross_Reference:

Citation_Information:

Title:

University Copyright Policy (stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4)

Online_Linkage: <http://www.uillinois.edu/trustees/rules.cfm#sec34>

Cross_Reference:

Citation_Information:

Title:

Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign

Online_Linkage: <http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attribute code assignments were checked by at least two individuals and are believed to fully represent the original hand-drawn maps.

Logical_Consistency_Report:

When this data set was in coverage form it was checked for complete chain-node topology (no dangling arcs, except where appropriate), boundary values appropriate for map projection and map units, and appropriate "fuzzy" tolerances. There are no known arc or polygon attribute values outside the appropriate value domains.

Completeness_Report:

This data set contains polygons indicating areas which are believed to contain sinkholes. Some sinkholes may not be represented on this map because of detection problems (primarily because of too small of a size, and dense vegetation cover). Not every sinkhole polygon was field checked. Therefore, it is possible that some depressions within the mapped polygons may have an origin different from sinkhole formation.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Boundaries of sinkhole area polygons represent actual ground positions, but are generalized. Thus, this data set should not be used at map scales larger than 1:100,000 without specific field verification.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bell, A. H., M. O. Oros, and J. Van Den Berg

Publication_Date: 1961

Title: Petroleum Industry in Illinois, 1960

Series_Information:

Series_Name: ISGS Illinois Petroleum

Issue_Identification: 75

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 121 p.

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1960

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bretz, J H.

Publication_Date: 1923

Title: Geology and Mineral Resources of the Kings Quadrangle

Series_Information:

Series_Name: Illinois State Geological Survey Bulletin

Issue_Identification: 43

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1923

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: p. 205-304

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bretz, J H.

Publication_Date: 1940

Title:

Solution cavities in the Joliet Limestone of northeastern Illinois

Series_Information:

Series_Name: Journal of Geology

Issue_Identification: v. 46

Publication_Information:

Publication_Place: Chicago, Illinois

Publisher: University of Chicago

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1940

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: p. 337-384

Source_Information:

Source_Citation:

Citation_Information:

Originator: Buschbach, T.C., and G.E. Heim

Publication_Date: 1972

Title:

Preliminary geologic investigations of rock tunnel sites for flood and pollution control in the greater Chicago area

Series_Information:

Series_Name:

Illinois State Geological Survey Environmental Geology Notes

Issue_Identification: 52

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 35 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1972

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Csallany, S., and W.C. Walton

Publication_Date: 1963

Title: Yields of shallow dolomite wells in northern Illinois

Series_Information:

Series_Name: Illinois State Water Survey Report of Investigation

Issue_Identification: 46

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 43 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1963

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Devera, J.A.

Publication_Date: 1993

Title:

Geologic Map of the Wolf Lake Quadrangle, Jackson and Union Counties, Illinois

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 24000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1993

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Ford, D.C., and P.W. Williams

Publication_Date: 1989

Title: Karst Geomorphology and Hydrology

Publication_Information:

Publication_Place: London

Publisher: Unwin Hyman Ltd.

Other_Citation_Details: 601 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1989

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Graese, A.M.

Publication_Date: 1991

Title:

Facies Analysis of the Ordovician Maquoketa Group and Adjacent Strata in Kane County, Northeastern Illinois

Series_Information:

Series_Name: ISGS Circular

Issue_Identification: 547

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1991

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Hackett, J.E., and R.E. Bergstrom

Publication_Date: 1956

Title: Groundwater in northwestern Illinois

Series_Information:

Series_Name: ISGS Circular

Issue_Identification: 207

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1956

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Knappen, R.S.

Publication_Date: 1926

Title: Geology and Mineral Resources of the Dixon Quadrangle

Series_Information:

Series_Name: Illinois State Geological Survey Bulletin

Issue_Identification: 49

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 141 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1926

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Kolata, D.R., and T.C. Buschbach

Publication_Date: 1976

Title: Plum River Fault Zone of Northwestern Illinois

Series_Information:

Series_Name: ISGS Circular

Issue_Identification: 491

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1976

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Kolata, D.R., T.C. Buschbach, and J.D. Treworgy

Publication_Date: 1978

Title: The Sandwich Fault Zone of Northern Illinois

Series_Information:

Series_Name: ISGS Circular

Issue_Identification: 505

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 26 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1978

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Lamar, J.E.

Publication_Date: 1928

Title: Karst Topography and Sanitary Engineering at Alton, Illinois

Series_Information:

Series_Name: Trns. IL St Acad Sci

Issue_Identification: 20

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1928

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: p. 261-264

Source_Information:

Source_Citation:

Citation_Information:

Originator: Otto, G.H

Publication_Date: 1963

Title:

Engineering Geology of the Chicago Area, in Foundation Engineering in the Chicago Area

Series_Information:

Series_Name:

Proceedings of Lecture Series, American Society of Civil Engineers

Issue_Identification: N/A

Publication_Information:

Publication_Place: Chicago, Illinois

Publisher: Illinois Institute of Technology

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1963

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: 3.1-3.24.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Piskin, K., and R.E. Bergstrom

Publication_Date: 1975

Title: Glacial Drift in Illinois: Thickness and Character

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Illinois State Geological Survey Circular

Issue_Identification: 490

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 35 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1975

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Rubey, W.W.

Publication_Date: 1952

Title: Geology and Mineral Resources of the Hardin and Brussels Quad

Series_Information:

Series_Name: Professional Paper

Issue_Identification: 218

Publication_Information:

Publication_Place: unknown

Publisher: United States Geological Survey

Other_Citation_Details: 179 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1952

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Treworgy, J.D.

Publication_Date: 1981

Title: Structural Features in Illinois: A Compendium

Series_Information:

Series_Name: Illinois State Geological Survey Circular

Issue_Identification: 519

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Other_Citation_Details: 83 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1981

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: White, W.B

Publication_Date: 1988

Title: Geomorphology and Hydrology of Karst Terrains

Publication_Information:

Publication_Place: not available

Publisher: Oxford University Press, Inc.

Other_Citation_Details: 464 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1988

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator: Willman, H.B., and others

Publication_Date: 1967

Title: Geologic Map of Illinois

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Illinois State Geological Survey map

Issue_Identification: same as title

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Source_Scale_Denominator: 500000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1967

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Zeizel, A.J., W.C. Walton, T.A. Prickett, and R.T. Sasman

Publication_Date: 1962

Title: Ground-water Resources of Du Page County

Series_Information:

Series_Name:

Illinois State Geological Survey Illinois State Water Survey Cooperative Ground-Water Report

Issue_Identification: Report 2

Other_Citation_Details: 103 p.

Source_Scale_Denominator: n/a

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1962

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: not available

Process_Step:

Process_Description:

These data were digitized from USGS 1:100,000 topographic/planimetric maps upon which the original data were compiled.

Process_Date: Unknown

Process_Step:

Process_Description:

Reviews of data.

Source map underwent ISGS peer review. Line accuracy was checked by overlay of digital print-outs to original compilation maps. Lines within one line-width of source maps were deemed acceptable. Attribute accuracy was verified against source maps.

Process_Date: 1994-95

Process_Step:

Process_Description:

The source coverage (karst) was imported into an ArcSDE enterprise geodatabase feature dataset for storage. Previously it was stored as individual coverages. The data were reprojected from the customary ISGS Lambert Conformal Conic projection (NAD27) to a geographic coordinate system (longitude, latitude) in decimal degrees (NAD83).

Prior to import, the spatial reference of the data set was changed to Geographic, decimal degrees, NAD83 in double precision.

Also at this time, this metadata file was updated.

Process_Date: 20040401

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 847

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Attribute items are in typical SDE feature class format. Those requiring additional explanation are:

KARST - a value of "y" indicates polygon represents a karst area

SQMILES - area of the polygon in square miles

Entity_and_Attribute_Detail_Citation: none

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Information Office, Illinois State Geological Survey (ISGS), a division of the Institute of Natural Resource Sustainability (INRS) of the University of Illinois

Contact_Address:

Address_Type: mailing and physical address

Address: 615 East Peabody Drive

City: Champaign

State_or_Province: Illinois

Postal_Code: 61820

Country: USA

Contact_Voice_Telephone: 217-333-4747

Contact_TDD/TTY_Telephone: 217-785-0211

Contact_Electronic_Mail_Address: isgs@isgs.illinois.edu

Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time

Distribution_Liability:

Refer to the Legal Notices of Terms and Conditions of the University of Illinois Web Privacy Policy (there is a link in the Cross References section) for policy statements regarding the following:

Disclaimer of Liability Disclaimer of Warranties and Accuracy of Data Disclaimer of Endorsement Disclaimer for External Links Disclaimer of Duty to Continue Provision of Data Security Choice of Law

By obtaining these data you agree to the provisions of the University of Illinois Web Privacy Policy, regardless of the manner in which the information was obtained.

Technical_Prerequisites:

The data are intended for use with GIS software. The ISGS uses ESRI ArcGIS software, however, ESRI formats can be imported into many different GIS software packages. It is expected that customers who obtain these data have the technical expertise to use GIS software. The ISGS does not provide software support of any kind.

Metadata_Reference_Information:

Metadata_Date: 20090224

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Instructions: Please refer to the Distribution Information section.

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints:

The access constraints as stated for the data apply also to the metadata. Refer to the Access Constraints section of the Identification Information section.

Metadata_Use_Constraints:

The use constraints as stated for the data apply also to the metadata. Refer to the Use Constraints section of the Identification Information section.

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Illinois Natural Resources Geospatial Data Clearinghouse