There’s a mystery lurking beneath the waters of West Lake Okoboji, one that has puzzled researchers and area residents for decades: Why is the lake so much deeper than any other lake in Iowa?

Read about recent completed research by the Iowa Geological Survey finds gully erosion filling up flood-control ponds faster than expected.

We are pleased to share with you our magazine, The IGS Geode, showcasing some of the Iowa Geological Survey’s activities during the past year.

Matthew Streeter, a soil scientist with the Iowa Geological Survey, has recently expanded his expertise to the wildfire-prone landscapes of Palo Cedro, California.

The Iowa Geological Survey will be leading a field trip in Muscatine County on Saturday, September 28.