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Data Online- 21 Monthly Climate Data- Beardstown, IL
- Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1901-present.
- 22 Monthly Climate Data- Virginia, IL
- Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1963-present.
- 23 National Weather Service: River Watch, Mississippi River Basin
- Illinois River 5-day stage forecasts for three main river segments: Morris to LaSalle, Henry to Beardstown, and New LaGrange to Hardin. Includes links to Upper Mississippi Basin stage forecasts.
- 24 NAWQA Data Warehouse
- Searchable database of National Water Quality Assessment data.
- 25 Panther Creek (Station 201) Discharge Data
- Discharge data files available in comma-delimited or graphical format
- 26 Panther Creek (Station 201) Nutrient Data
- Nutrient concentration data files available in comma-delimited or graphical format
- 27 Panther Creek (Station 201) Sediment Data
- Suspended sediment concentration data files available in comma-delimited or graphical format
- 28 Panther Creek (Station 201) Stage Data
- Stage data files available in comma-delimited or graphical formats
- 29 Ammonia-N Concentrations in the Illinois River Watershed
- Thematic map showing the mean total Ammonia-N for each of the major sub-watersheds.
- Download Options: LoRes preview | HiRes (624 K) | Metadata
- 30 Average soil depth in the Illinois River Watershed
- Thematic map showing the average soil depth (inches) across the basin.
- Download Options: LoRes preview | HiRes (3.36 MB) | Metadata
- 31 Cass County Orthophotography Data 1998-1999
- Illinois National Aerial Photography Program Digital Orthophotography quarter Quadrangle data for Cass County in the Universal Transverse Mercator (UTM) coordinate system with a NAD83 datum.
- 32 Elevation in the Illinois River Watershed
- Thematic map showing elevation changes in the basin.
- Download Options: LoRes preview | HiRes (1.76 MB) | Metadata
- 33 Floodzones in the Illinois River Watershed
- Thematic map showing the 100 and 500 year floodzones across the basin as of 1986.
- Download Options: LoRes preview | HiRes (3.77 MB) | Metadata
- 34 Illinois Bluffs Watershed
- Thematic map of the Illinois Bluffs watershed showing roads, county boundaries, and elevation changes.
- Download Options: LoRes preview | HiRes (2.26 MB) | Metadata
- 35 Illinois County Boundaries, Polygons and Lines
- GIS data - zipped shapefile
- 36 Illinois Floodplain Maps
- ISWS resource providing preliminary and final maps of Illinois floodplains.
- 37 Illinois River Basin GIS Data Viewer
- Interactive map provided by the ISWS. Viewable layers include watersheds, rivers, water quality, geology, and groundwater.
- 38 Illinois River Basin Weather Stations
- The weather stations in this data set were gathered from the WDM database within the Basins watershed modeling program. Coordinates for the stations were exported from Basins, then formatted and imported into ArcGIS. This data set was created to support research at the Illinois State Water Survey. (shapefile, .zip archive)
- 39 Illinois River Watershed - Poster
- Poster-sized (26x38) map of the entire Illinois River Watershed. Part of the Illinois State Water Survey published Map Series (2003-1)
- Download Options: LoRes preview | HiRes (3.5 MB) | Metadata
- 40 Land cover in the Illinois River Watershed
- Thematic map showing land cover from raster imagery.
- Download Options: LoRes preview | HiRes (2.68 MB) | Metadata
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