(1) vector spatial data layers in ArcView data format for drift thickness polygons and contours;
(2) JPEG browse images from the final published map, and
(3) metadata in FGDC compliant format for all spatial layers.
The vector data include maximum and minimum thicknesses of drift polygons, contour thickness values and a line-type indicator.
Vector data are in the geographic coordinate system, decimal degrees, NAD83.
For a detailed list of the files included in the data product, see the Supplemental_Information section.
The data were published in 1999 on an ISGS Illinois Geologic Quadrangle entitled Drift Thickness Map, Villa Grove Quadrangle, Douglas County, Illinois by C. Pius Weibel and Curtis C. Abert. The data in this compilation do not include all the information on the published map. Refer to the published map for a complete explanation of the Drift Thickness of the Villa Grove Quadrangle.
The nominal scale is 1:24,000.
Detailed List Of Files included in the product ---------------------------------------------- Folder Filename Size(kb) Filetype Description ----------------- -------------- -------- --------------------------------------------- ------------------------------------------------------ dp00010 drift_ln.dbf 25 shapefile dBase component contour boundaries - map boundaries dp00010 drift_ln.prj 1 shapefile projection component contour boundaries - map boundaries dp00010 drift_ln.shp 506 shapefile contour boundaries - map boundaries dp00010 drift_ln.shx 2 shapefile component contour boundaries - map boundaries dp00010 drift_py.dbf 10 shapefile dBase component drift thickness units dp00010 drift_py.prj 1 shapefile projection component drift thickness units dp00010 drift_py.shp 987 shapefile drift thickness units dp00010 drift_py.shx 1 shapefile component drift thickness units dp00010 readme.htm 14 ASCII text imbedded in HTML describes this data bundle Folder Filename Size(kb) Filetype Description ----------------- -------------- -------- --------------------------------------------- ------------------------------------------------------------- dp00010/images browse_l.jpg 225 JPEG/JFIF image reduced resolution image of the complete map sheet dp00010/images browse_m.jpg 211 JPEG/JFIF image reduced resolution image of the mapped quad as it appears on the published map dp00010/images browse_s.jpg 5 JPEG/JFIF image small browse graphic dp00010/images locmap.jpg 56 JPEG/JFIF image location map from published map Folder Filename Size(kb) Filetype Description ----------------- -------------- -------- --------------------------------------------- ------------------------------------------------------------- dp00010/metadata dp00010s.htm 22 metadata in FGDC HTML outline format overall metadata document to describe this data bundle dp00010/metadata dp00010sf.htm 22 metadata in FGDC HTML FAQ format overall metadata document to describe this data bundle dp00010/metadata drift.htm 17 metadata in FGDC HTML outline format drift thickness and contours metadata
Illinois State Geological Survey, 2002, Drift Thickness of the Villa Grove 7.5-minute Quadrangle, Illinois - ISGS Digital Data Compilation - Basic Version: ISGS Digital Data Product dp00010s, Illinois State Geological Survey, Champaign, Illinois.This is part of the following larger work.Online Links:
- Illinois Natural Resources Geospatial Data Clearinghouse Web Site, Illinois Geologic Quadrangles digital data distribution component <URL:http://www.isgs.uiuc.edu/nsdihome/webdocs/igq/>
C. Pius Weibel and Curtis C. Abert, 1999, Drift Thickness Map, Villa Grove Quadrangle, Douglas County, Illinois: Illinois Geologic Quadrangle (IGQ) Villa Grove DT, Illinois State Geological Survey, Champaign, Illinois.
Illinois State Geological Survey
GIS Database Administrator
615 East Peabody Drive
Champaign, Illinois 61820
USA
217-333-4747 (voice)
isgs@isgs.uiuc.edu
- Hours_of_Service: 8:00 a.m. - 5:00 p.m. Central Time, Monday-Friday
- Contact_Instructions:
- When contacting us, please have this metadata file readily available so we can identify the data set of interest and the individual most appropriate to assist you.
This data compilation is intended to provide a regional overview of the extent of Drift Thickness units in the Villa Grove Quadrangle. The data are appropriate regional thematic analysis. The data are not appropriate as a geodetic or engineering base, nor do they replace the need for detailed site-specific studies.
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints:
- Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee 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 the 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.
These data are not to be used for commercial profit.
These data should not be used at scales greater than 1:24,000.
Illinois State Geological Survey
GIS Database Administrator
615 East Peabody Drive
Champaign, Illinois 61820
USA
217-333-4747 (voice)
isgs@isgs.uiuc.edu
- Hours_of_Service: 8:00 a.m. - 5:00 p.m., Central Time, Monday-Friday
- Contact_Instructions:
- When contacting us, please have this metadata file readily available so we can identify the data set of interest and the individual most appropriate to assist you.
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.
The GIS data can be used in any GIS software compatible with the ESRI shape file (.shp) format. Most Internet browsers and graphics software are compatible with the JPEG image format. Other digital files in the product are compatible with typical PC desktop software.It is assumed that those who wish to download, unzip and use these data are technically proficient in using the Internet, file zipping software, and GIS software. The ISGS will entertain questions about the data, but will not provide support of any kind in regard to the use of the Internet or any particular software package.
Illinois State Geological Survey
GIS Database Administrator
615 East Peabody Drive
Champaign, Illinois 61820
USA
217-333-4747 (voice)
isgs@isgs.uiuc.edu
- Hours_of_Service: 8:00 a.m. - 5:00 p.m. Central Time, Monday-Friday
- Contact_Instructions:
- When contacting us, please have this metadata file readily available so we can identify the data set of interest and the individual most appropriate to assist you.