Conferences were held biennially from 1897 through 2015. Abstract books and proceedings are available online in IDEALS.

Report from the Prairie Research Institute (PRI) Office of the Lieutenant Governor on progress toward the objectives of the Integrated Management Plan for the Illinois River Watershed from 1997 to 2017 based on PRI’s data and studies.

Data on fish populations, water quality, and a range of other parameters from 1988 to date are available from multiple sites on the Illinois River, contributed by Illinois Natural History Survey field stations in Brighton, IL (Great Rivers Biological Station) and Havana, IL, (Illinois River Biological Station). View sampling location information for LTRMP

Search for water quality data by characteristic or location. Produced by the Illinois State Water Survey. Data are available primarily for the Upper Illinois River.