Archaeological Resource Potential in Illinois

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: Illinois State Museum

Publication_Date: 1994

Title: Archaeological Resource Potential in Illinois

Edition: 20060817

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: ISGS GIS Database

Issue_Identification: GISDB_QTGEO.IL_Arch_Resource_Potential_Py

Description:

Abstract:

This is a statewide polygon feature class of areas in Illinois believed to possess a high archaeologic potential. It was developed by the Illinois State Museum and is intended for coarse regional analysis. The nominal map scale is 1:500,000 with a positional National Map Accuracy Standard value of 832 feet. Note however that the nature of the boundaries themselves, approximate limits of archaeologic potential, make specific statements of positional accuracy unimportant.

Background - The Illinois State Agency Historic Preservation Act (P.A. 86-707) mandates state government to preserve, restore, and maintain the historic resources of the state. Activities that can result in change of historic properties undertaken, supported or administered by a State agency are subject to review by the Illinois Historic Preservation Agency (IHPA). The IHPA also regulates private undertakings which require a permit from a State agency. Private undertakings that will affect a documented archaeological site or an area with a high potential for archaeological resources, must inventory and assess the scientific and historic potential of archaeological and historic properties within the project area. The Illinois State Museum (ISM) is responsible for preparing maps illustrating areas with a high probability for archaeological resources.

Based on the statewide distribution of documented archaeological resources, a high probability area "means any occurrence of Cahokia Alluvium, Carmi Member of Equality Formation, Grayslake Peat, Parkland Sand, Peyton Colluvium the Batavia Member of the Henry Formation, or the Mackinaw Member, as mapped by Lineback et al. (1979) at a scale of 1:5000,000 within permanent stream floodplains and including:

1) 500 yards of the adjoining bluff line crest of the Fox, Illinois, Kankakee, Kaskaskia, Mississippi, Ohio, Rock, and Wabash Rivers and 300 yards of the adjoining bluff line crest of all other rivers or,

2) a 500 yard wide area along the shore of Lake Michigan abutting the high water mark."

Purpose:

To determine the probability of a high archaeological resource area. These data are appropriate for use in local and regional thematic analysis. The data are not appropriate as a geodetic, legal or engineering base. 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, property lines, or flood zones.

Supplemental_Information:

This statewide edition of the data is designated 20060817. The previous edition, stored as county-by-county coverages on the ISGS GIS system, was designated edition 1.0.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1994

Currentness_Reference: Historic site map

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -92.0

East_Bounding_Coordinate: -87.5

North_Bounding_Coordinate: 42.5

South_Bounding_Coordinate: 37.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: archaeological

Theme_Keyword: archaeology

Theme_Keyword: cultural

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Illinois

Access_Constraints: none

Use_Constraints:

Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee's organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without permission of DNR.

Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR.

Point_of_Contact:

Contact_Information:

Contact_Instructions: Please refer to the distribution information.

Native_Data_Set_Environment: ArcSDE 9.1 on Oracle 9i on SunOS 5.8.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: The attributing is correct for all polygons.

Logical_Consistency_Report: Original coverage data are topologically structured polygons.

Completeness_Report:

Data set is complete in that the entire state is included. However, this map is a model of archaeological resource potential, not a map of a tangible resource with known boundaries. Clearly some areas with resource potential are not included, rather this map reflects the definition prescribed by law.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Unknown. Boundaries are estimates.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: D.H. Swann, P.B. DuMontelle, R.F. Mast, L.H. Van Dyke

Publication_Date: 1970

Title: ILLIMAP - A computer-Based Mapping System for Illinois

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Illinois State Geological Survey Circular

Issue_Identification: 451

Source_Scale_Denominator: unknown

Type_of_Source_Media: computer program

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1970

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: see process steps

Source_Information:

Source_Citation:

Citation_Information:

Originator: Lineback, J.A.

Publication_Date: 1979

Title: Quaternary Deposits of Illinois

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Illinois State Geological Survey Map

Issue_Identification: same as title

Source_Scale_Denominator: 500000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1979

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution:

ISM staff redigitized all of the quaternary deposits specified by the law.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U. S. Geological Survey

Publication_Date: 1987

Title: Standards for Digital Line Graphs

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: USGS 1:100,000 DLG files

Issue_Identification: DLG files for Illinois

Source_Scale_Denominator: 100000

Type_of_Source_Media: digital file

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1987

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: Hydrology information

Process_Step:

Process_Description:

The steps taken in deriving the boundaries of high potential areas are as follows:

1) The extent of the seven quaternary deposits mentioned above were hand-digitized by ISM personnel from Lineback (1979) from county size tiles that had been photo enlarged to 200 percent, making as effective digitizing scale of 1:250,000.

2) Hydrology was clipped from the 1:100,000 USGS DLG data and permanent streams, wide streams, and shorelines were extracted. All ponds were then removed to produce a simple line coverage.

3) The boundaries of Cahokia Alluvium were used to simulate the bluff edge.

4) Those portions of Cahokia Alluvium associated with one of the 8 large rivers mentioned in the bill were extracted.

5) The Cahokia Alluvium was buffered by 500 meters near the big rivers and 300 meters elsewhere.

6) A buffer of 300 yards was produced around all permanent streams not associated with Cahokia Alluvium on the Lineback map.

7) A small amount of edge matching was done at county boundaries, although some discrepancies still exist.

Process_Date: Unknown

Process_Step:

Process_Description:

The 102 county-by-county coverages were compiled into a single statewide coverage. The coverage data were in the customary ISGS Lambert Conformal Conic projection. For the 102 county coverages with identical PAT items and definitions, this was accomplished with the Arc Workstation command APPEND, as follows:

APPEND ARCHMOD POLY <list of 102 coverages> END

The coverage was then cleaned, dissolved, and converted to a shapefile:

CLEAN ARCHMOD ARCHMOD2 0.002 0.002 POLY DISSOLVE ARCHMOD2 ARCHMOD3 HIGHPROB POLY ARCSHAPE ARCHMOD3 POLY archmod_py.shp

The data were then reprojected to lon/lat NAD83 using the Project function of ArcToolbox:

Executing (Project_1): Project C:\archmod_py.shp C:\archmod_py_Project GEOGCS['GCS_North_American_1983',DATUM['D_North_American_1983',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]] NAD_1927_To_NAD_1983_NADCON Executed (Project_1) successfully.

Process_Date: 20060816

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Illinois State Geological Survey

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: 372

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

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

Geographic:

Geographic_Coordinate_Units: Decimal degrees

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

File attribute items are in typical ArcSDE format. Polygon items requiring additional explanation are:

HIGHPROB - Areas of High archaeologic potential, Illinois State Agency Historic Preservation Act (P.A. 86-707)

0 - not high potential

1 - area of high archaeological resource potential

Entity_and_Attribute_Detail_Citation: none

Detailed_Description:

Attribute:

Attribute_Label: HIGHPROB

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Detailed_Description:

Entity_Type:

Entity_Type_Label: IL_Arch_Resource_Potential_Py

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Illinois State Museum

Contact_Person: Mike Wiant

Contact_Address:

Address_Type: mailing address

Address: 1011 E. Ash

City: Springfield

State_or_Province: Illinois

Postal_Code: 62703

Country: USA

Contact_Voice_Telephone: 217-785-0134

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

Distribution_Liability:

The Illinois Department of Natural Resources (DNR) provides these geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by DNR.

Technical_Prerequisites:

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

Metadata_Reference_Information:

Metadata_Date: 20060920

Metadata_Contact:

Contact_Information:

Contact_Instructions: Please refer to the distribution information.

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: None.

Metadata_Use_Constraints: None.

Metadata_Time_Convention: local time

Metadata_Extensions:

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

Profile_Name: ESRI Metadata Profile

Lineage:

Illinois Natural Resources Geospatial Data Clearinghouse