The Iowa Department of Natural Resources says the map is available to help Iowans find out about what's in the earth below towns and farms. It was produced by the state's Geological and Water ...

THE papers in this report contain descriptions of the geological characteristics of six counties in Iowa, namely, Johnson and Cerro Gordo Counties, described by Dr. Samuel Calvin, State Geologist ...

ROCKFORD, Iowa (AP) -- The new Rockford Fossil and Prairie Center gives visitors a chance to see northern Iowa as the shallow sea it was 375 million years ago and ...

The Iowan Surface formed during the most recent glacial advance (the Des Moines Lobe) into Iowa. Mitchell County was not covered in ice, but was very near the glacial front and experienced a ...