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21  Upper Rock Watershed Water Data

The USGS National Water Information System provides real-time and historical data on surface water flow, ground water levels, and water quality of streams in the US.

22  Illinois County Boundaries, Polygons and Lines

GIS data - zipped shapefile  

23  Illinois Floodplain Maps

ISWS resource providing preliminary and final maps of Illinois floodplains.

24  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

25  Major Watersheds of Illinois

Poster-sized (26x38) map of the major watersheds in Illinois. Part of the Illinois State Water Survey published Map Series (2000-01)

Download Options: LoRes preview | HiRes (730 K) | Metadata

26  Resource Management Mapping Service

Interactive map that allows users to locate, create, and print maps of large and small areas within Illinois. Natural resource, administrative, and economic layers available.

27  Stephenson County Orthophotography Data 1998-1999

Illinois National Aerial Photography Program Digital Orthophotography quarter Quadrangle data for Stephenson County in the Universal Transverse Mercator (UTM) coordinate system with a NAD83 datum.  

= Abstract available     = Full Text available     = Fact Sheet available
= PDF format     = HTML format     = PowerPoint format

28  7-day 10-year low flows of streams in the Rock, Spoon, La Moine, and Kaskaskia regions

Singh, Krishan P., Ganapathi S. Ramamurthy, and Il Won Seo, 1988 ISWS CR-440

29  Adequacy of Illinois surface water supply systems to meet future demands

McConkey Broeren, Sally, and Krishan P. Singh, 1989 ISWS CR-477

30  Benchmark sediment monitoring program for Illinois streams : data report for water years 1994 and 1995.

Allgire, Richard L., 2001 ISWS DCS 2001-01

31  Benchmark sediment monitoring program for Illinois streams : data report for Water Years 1996 and 1997.

Allgire, Richard L., 2001 ISWS DCS 2001-02

32  Benchmark sediment monitoring program for Illinois streams : data report for Water Years 1998 and 1999

Allgire, Richard L., 2002 ISWS DCS 2002-01

33  Benchmark sediment monitoring program for Illinois streams: data report for the water years 1992 and 1993

Allgire, Richard L., 1997 ISWS C-183

34  Benchmark sediment monitoring program for Illinois streams: program summary and site descriptions.

Allgire, Richard L., and Misganaw Demissie, 1995 ISWS C-181

35  Diagnostic-feasibility study of Lake Le-Aqua-Na

Kothandaraman, Veerasamy, and Ralph L. Evans, 1983 ISWS CR-313

36  Geology, hydrology, and water quality of the Cambrian and Ordovician systems in northern Illinois

Visocky, Adrian P., Marvin G. Sherrill, and Keros Cartwright, 1985 ISWS COOP-10

37  Groundwater pumpage in northern Illinois, 1960-1970

Sasman, Robert T., Curtis R. Benson, Gregory L. Dzurisin, and N.E. Risk, 1974 ISWS RI-73

38  Hydraulic geometry of Illinois streams

Stall, John B., and Yu-Si Fok, 1968 ISWS CR-92

39  Identification of Unmapped Special Flood Hazard Areas in Illinois

Graff, Philip, Chap, Laura, McConkey, Sally, DePue, Michael, Allan, Kingsley, Bicksler, Rebecca, 2008 ISWS CR 2008-05

40  Illinois Climate Network: site descriptions, instrumentation, and data management

Hollinger, Steven E., Beth C. Reinke, and Randy A. Peppler, 1994 ISWS C-178

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