Upper Midwest Environmental Sciences Center

GIS Data - Alton Reach - Illinois River

Illinois River - Alton

River Mile 0-80
Updated November 17, 2021
Alton
Alton is used to describe the unimpounded region of the Illinois River. It extends from the confluence of the Illinois and Mississippi Rivers located near Grafton, Illinois upstream to the La Grange Lock and Dam located south of Beardstown, Illinois.

National Atlas and Seamless data server data have been moved to the National Map.
Image of the Alton reach

background information Aerial Photos (UMESC)

Orthoreferenced Color Infrared Images
In 2010, the EMP partnered with the USFWS to fly and acquire CIR digital aerial photography of Pools 1-13, Upper Mississippi River and Pools Alton–Marseilles, Illinois River at 8"/pixel and 16"/pixel respectively using a mapping-grade Applanix DSS439 digital aerial camera . The photography was collected at a minimum accuracy of 5-10 meters. These are the orthorectified photo mosaics for all or portions of the coverage area. The flights occurred during times of peak vegetation biomass, from August 13, 2010 through September 1, 2010. The mosaics are served as orthoreferenced JPEG2000 images.

jpg2000Metadata - 2010 Alton Pool Orthoreferenced Color Infrared Image (415 MB JPG2000)

On occasion the Center will scan and register aerial photography for special projects. As these data sets are created they're also made available through Web site. For information on how to download these data and obtain a free viewer program or the required .dll files for your GIS program, activate the help button.

MrSid Image - z15n27Metadata - 2000 Alton Pool, georeferenced true color photo composite (645 MB z15n27 MrSid)

2020 Systemic Imagery

The U.S. Army Corps of Engineers' Upper Mississippi River Restoration (UMRR) program, through its Long Term Resource Monitoring (LTRM) element, collected aerial imagery of the systemic Upper Mississippi River System (UMRS) during the summer of 2020. The main purpose of the aerial imagery was to develop Land Cover/Land Use (LCU) spatial datasets of navigable pools (the stretch of river between locks and dams) and reaches of the UMRS

UMRR LTRM 2020 4-Band Aerial Imagery Mosaic - Illinois River Alton Pool

UMRR LTRM 2020 4-Band Aerial Orthoimages - Illinois River Alton Pool

 

background information Aquatic Areas (UMESC)

ArcView Shapefile - z15n83Metadata - 1989 Aquatic Areas (4.8 MB z15n83 Shape)

background information Digital Lidar Derivatives

Lidar (Light Detection And Ranging) data are remotely sensed, high-resolution elevation data collected by airplane. The Upper Midwest Environmental Sciences Center processed these data to create Digital Elevation Models (DEMs), 0.5 meter contour lines, and pool-wide hillshade images. These data are a product of the U.S. Army Corps of Engineers’ Upper Mississippi River Restoration (UMRR) Program Long Term Resource Monitoring (LTRM) element, as distributed by the U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin. Tier 1 products are derived directly from vendor-provided LAS-format (LASer) files that have not been cleaned or edited in order to serve the data as quickly as possible. Tier 1 data have been quality checked by the vendor and obvious errors removed, but some isolated errors often remain.

Quadrangle Name
DEMs
Contour
Arnezville West - 24K quad qn2h4_dem.exe (100 MB) qn2h4_con.exe (108 MB)
Bedford - 24K quad qn2e5_dem.exe (162 MB) qn2e5_con.exe (197 MB)
Brussels - 24K quad st2h5_dem.exe (132 MB) st2h5_con.exe (253 MB)
Chapin - 24K quad qn2g4_dem.exe (33 MB) qn2g4_con.exe (47 MB)
Cooperstown - 24K quad qn2h5_dem.exe (84 MB) qn2h5_con.exe (91 MB)
Florence - 24K quad qn2f5_dem.exe (161 MB) qn2f5_con.exe (212 MB)
Foley - 24K quad qn4a6_dem.exe (3 MB) qn4a6_con.exe (15 MB)
Grafton - 24K quad st2h4_dem.exe (7 MB) st2h4_con.exe (19 MB)
Griggsville - 24K quad qn2f6_dem.exe (40 MB) qn2f6_con.exe (65 MB)
Hamburg - 24K quad qn4b6_dem.exe (10 MB) qn4b6_con.exe (54 MB)
Hardin - 24K quad qn4b5_dem.exe (167 MB) qn4b5_con.exe (344 MB)
Kampsville - 24K quad qn4c5_dem.exe (170 MB) qn4c5_con.exe (258 MB)
Meredosia - 24K quad qn2g5_dem.exe (259 MB) qn2g5_con.exe (281 MB)
Nutwood - 24K quad qn4a5_dem.exe (166 MB) qn4a5_con.exe (468 MB)
Pearl East - 24K quad qn4d5_dem.exe (162 MB) qn4d5_con.exe (188 MB)
Pearl West - 24K quad qn4d6_dem.exe (4 MB) qn4d6_con.exe (24 MB)
Perry East - 24K quad qn2g6_dem.exe (62 MB) qn2g6_con.exe (73 MB)
Pleasant Dale Valley - 24K quad qn4c6_dem.exe (11 MB) qn4c6_con.exe (60 MB)
Versailles - 24K quad    
Hillshade image
First return
Last return
Alton Reach 2011_alt_hsf.exe (465 MB) 2011_alt_hsl.exe (383 MB)

background information 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.

Quadrangle Name
Northwest
Southwest
Northeast
Southeast
Arnezville West - 24K quad
N/A
N/A
N/A
N/A
Bedford - 24K quad
N/A
N/A
N/A
N/A
Brussels - 24K quad
N/A
N/A
Chapin - 24K quad
N/A
N/A
 N/A N/A
Cooperstown - 24K quad N/A N/A N/A N/A
Florence - 24K quad N/A N/A N/A N/A
Foley - 24K quad N/A N/A N/A N/A
Grafton - 24K quad st2h4nw_doq.exe (2.3 MB) st2h4sw_doq.exe (2.2 MB) st2h4ne_doq.exe (2.3 MB) st2h4se_doq.exe (2.2 MB)
Griggsville - 24K quad N/A N/A N/A N/A
Hamburg - 24K quad N/A N/A N/A qn4b6se_doq.exe (2.2 MB)
Hardin - 24K quad
N/A
N/A
N/A
N/A
Kampsville - 24K quad
N/A
N/A
N/A
N/A
Meredosia - 24K quad
N/A
N/A
 N/A N/A
Nutwood - 24K quad N/A N/A N/A N/A
Pearl East - 24K quad N/A N/A N/A N/A
Pearl West - 24K quad N/A N/A N/A N/A
Perry East - 24K quad N/A N/A N/A N/A
Pleasant Dale Valley - 24K quad N/A N/A N/A N/A
Versailles - 24K quad N/A N/A N/A N/A
Composite Image
DOQ 
Alton Reach MrSid Image - z15n83 doq_alt_z15n83.exe (46.0 MB)

background information Digital Raster Graphics (DRG)

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
Jerseyville - 100K quad qn4_drg1.exe (7.6 MB) N/A
Meredosia - 100K quad qn2_drg1.exe (8.6 MB) N/A
Saint Louis - 100K quad st2_drg1.exe (9.9 MB) N/A
Arnezville West - 24K quad N/A qn2h4_drg2.exe (2.9 MB)
Bedford - 24K quad N/A qn2e5_drg2.exe (3.3 MB)
Brussels - 24K quad N/A st2h5_drg2.exe (5.2 MB)
Chapin - 24K quad N/A qn2g4_drg2.exe (4.4 MB)
Cooperstown - 24K quad N/A qn2h5_drg2.exe (4.3 MB)
Florence - 24K quad N/A qn2f5_drg2.exe (3.3 MB)
Foley - 24K quad N/A qn4a6_drg2.exe (4.3 MB)
Grafton - 24K quad N/A st2h4_drg2.exe (4.0 MB)
Griggsville - 24K quad N/A qn2f6_drg2.exe (3.9 MB)
Hamburg - 24K quad N/A qn4b6_drg2.exe (4.5 MB)
Hardin - 24K quad N/A qn4b5_drg2.exe (3.3 MB)
Kampsville - 24K quad N/A qn4c5_drg2.exe (3.1 MB)
Meredosia - 24K quad N/A qn2g5_drg2.exe (2.7 MB)
Nutwood - 24K quad N/A qn4a5_drg2.exe (4.1 MB)
Pearl East - 24K quad N/A qn4d5_drg2.exe (3.2 MB)
Pearl West - 24K quad N/A qn4d6_drg2.exe (3.3 MB)
Perry East - 24K quad N/A qn2g6_drg2.exe (4.2 MB)
Pleasant Dale Valley - 24K quad N/A qn4c6_drg2.exe (4.0 MB)
Versailles - 24K quad N/A qn2h6_drg2.exe (4.3 MB)
Composite Image
100K Color
100K Gray Scale
Alton Reach drg_alt_clr100k_z15n83.exe (11.5 MB) drg_alt_bw100k_z15n83.exe (11.3 MB)

Geodatabases

Since 1989 the Upper Midwest Environmental Sciences Center through its association with the Upper Mississippi River Restoration Programs Long Term Resource Monitoring element, has been creating land cover/use and other riverine datasets for the Upper Mississippi River System. For background information on how these data sets were created and are attributed, see the associated metadata in each geodatabase.

data_alt.gdb.exe


Topobathy 

Separate Lidar and bathymetry data were collected on the Upper Mississippi River System (UMRS) by the US Army Corps of Engineers (USACE), Upper Mississippi River Restoration (UMRR) program. While many information needs can be met by using these data separately, in many cases seamless elevation data across the river and its floodplain are needed. This seamless elevation surface was generated by merging the Lidar and bathymetry data.

UMRR Alton Reach Topobathy

Land Cover/Use

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.

XMLKMZbackground informationArcView Shapefile - z15n83MetaData - 2010 Land Cover/Use (17.0 MB z15n83 Shape)
XMLKMZbackground informationArcView Shapefile - z15n83MetaData - 2000 Land Cover/Use (9.6 MB z15n83 Shape)
XMLKMZbackground informationArcView Shapefile - z15n83MetaData - 1989 Land Cover/Use version 2 (20.6 MB z15n83 Shape)
background informationUNIX format ASCII fileNT format ASCII fileArcView Shapefile - Z 15MetaData - 1989 Land Cover/Use - Satellite Data (766 KB UNIX) (815 KB NT) (568 KB Shape)

background information Land/Water (UMESC)

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.


ArcView Shapefile - z15n27ArcView Shapefile - z15n83MetaData - 2000 Land/Water (2.8 MB z15n27 Shape) (2.9 MB z15n83 Shape)
ArcView Shapefile - z15n27ArcView Shapefile - z15n83MetaData - 1989 Land/Water (5.0 MB z15n27 Shape) (5.9 MB z15n83 Shape)

background information River Miles (UMESC and SAST)

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.

ArcView Shapefile - Z 15Metadata - UMESC River Miles (50 KB UNIX) (80 KB NT) (44 KB Shape)
ArcView Shapefile - Z 15Metadata - SAST River Miles (108 KB UNIX) (146 KB NT) (85 KB Shape)

background information UMRS Basin

ArcView Shapefile - Z 15Metadata - 1993 Levees (359 KB Shape)

Page Last Modified: November 17, 2021