The Illinois River basin is one of our most precious natural resources. Stretched across 54 counties, the basin includes more than 10 million acres of the world’s most productive farmland. The ...

Burke Minsley, right, a geophysicist with the U.S. Geological Survey, explains equipment that will be used to scan underground features that relate to water movement along the Illinois River basin ...

MONEE — Residents within the Illinois River Basin may notice a helicopter making a series of low-level flights over the next few weeks to collect groundwater data. Starting Jan. 24, a helicopter ...

That's how Andrew Wieland, another large river fisheries ecologist at the Illinois Natural History Survey's biological station, came to be on board when the 109-pound bighead carp became snagged ...

The U.S. Geological Survey will start sending out a helicopter towing a large hoop to make low-level flights over the Illinois River Basin as part of ongoing groundwater studies.

SILOAM SPRINGS -- Heavier rains outstrip all other causes of worsening floods in the Illinois River's basin, according to a study presented Tuesday by the U.S. Army Corps of Engineers.

An unusual set of weather conditions flooded the Illinois River basin Sunday and Monday, but records show “unusual” isn’t quite so rare as it used to be. A storm that developed over western ...

The Illinois River stretches across the landscape in Tahlequah, Okla., on Monday, October 19, 2015. A recent study has shown improved water quality in the river, which was previously affected by ...

The National Weather Service says flooding in the Illinois River basin is similar to what happened in the basin in June of 1974. See The Latest USGS Water Data Of The Illinois River Near Tahlequah.