Upper Midwest Environmental Sciences Center
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Illinois River - Starved RockRiver Mile 231-244.5Updated August 18, 2008 |
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Digital Orthophoto Quadrangles (DOQ)
Digital orthophoto quadrangles (DOQ) are georeferenced images of aerial photographs that have had camera orientation and terrain displacements removed.
These data are being compressed and redistributed through this Web site as a service for program partners of the Upper Midwest Environmental Sciences Center. If you require data for areas outside the Mississippi River floodplain, data sets made from photographs from a different year, or the uncompressed files, contact the EROS Data Center. Project status information, photography dates, and ordering information are available online.
Quadrangle Name |
Northwest |
Southwest |
Northeast |
Southeast |
Marseilles - 24K quad |
N/A |
N/A |
N/A |
N/A |
Ottawa - 24K quad |
N/A |
N/A |
N/A |
N/A |
Starved Rock- 24K quad |
N/A |
N/A |
N/A |
N/A |
Composite Image |
DOQ |
|||
Starved Rock Reach |
N/A |
N/A |
Digital raster graphic (DRG) files are scanned and rectified images of USGS quadrangles.
These data are being compressed and redistributed through this Web site as a service for program partners of the Upper Midwest Environmental Sciences Center. If you require data for additional areas, the help button access information on which files are available through this Web site, the USGS National Mapping Center in Rolla, Missouri keeps a listing of sites that distribute DRG files through the Internet, and copies of the data can be ordered from the EROS Data Center (for a duplication and distribution fee).
Quadrangle Name |
Original Image |
Overlapping Image |
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Ottawa - 100K quad | 5.0 MB | N/A | ||
Marseilles - 24K quad | N/A | 3.8 MB | ||
Ottawa - 24K quad | N/A | 3.3 MB | ||
Starved Rock - 24K quad | N/A | 3.2 MB | ||
Composite Image |
100K Color |
100K Gray Scale |
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Starved Rock Reach | z15n27 1.2 MB |
z15n83 1.2 MB |
z15n27 1.2 MB |
z15n83 1.2 MB |
z16n27 1.1 MB |
z16n83 1.1 MB |
z16n27 1.1 MB |
z16n83 1.1 MB |
These data were created from USGS - National Mapping Division hydrology data. The data were modified to display tributaries of the Upper Mississippi River System (UMRS). If you require these data in their original format, contact the EROS Data Center. The files are available to download via. FTP, and regional CD-ROMs are also available.
Since 1989 the Upper Midwest Environmental Center through its association with the Long Term Resource Monitoring Program has been creating land cover/use data sets for the Upper Mississippi River system. For background information on how these data sets were created and are attributed, activate the help buttons. A link to a freeware GIS data viewer that can read the Shape files is also available.
Land/water is one of the classification attributes in the land cover/use data sets created by UMESC from aerial photography. These data are redistributed here as shape files with the boundaries of the region's 1:24,000-scale USGS quadrangles added to the data. This has been done because individuals working with ArcView have reported numerous problems if they attempt to perform a dissolve on the land cover/use data to create a land/water only shape file. Most printers cannot process the detailed land/water boundaries unless some form of a break line or lines are added.
Graphical images of the Center's 3-4 foot tall wall maps and some standardized report figures area available as reference graphics.
The U.S. Army Corps of Engineers use a river mile measuring scheme to locate features on the Mississippi River. Two digital version of these data are available, one created by UMESC from stored on USGS quadrangles, and one created by the SAST project. The SAST data set differs from the UMESC data set in that some of the river mile markers were relocated by UMESC staff so they would fall within the navigation channel.
Transportation (USGS-National
Mapping Division)
USGS's 1:100,000-scale transportation data for the Upper Mississippi River floodplain are being redistributed through this web site as a service for program partners of the Upper Midwest Environmental Sciences Center. If you require these data as UNIX format files, data for additional areas, or want to make sure you have the most recent version of the data, contact the EROS Data Center. EROS makes these data available to download via the Internet.
Other
Other UMESC pages or Web sites that may contain links to data sets for this area are: