Here’s the Latest!

A field trip group looks at a rock outcrop

Earth MRI Projects

The IGS partnered with more than a dozen other state surveys on two projects to assess the geochemistry of selected Pennsylvanian and Devonian bedrock formations.

A man in a blue jacket sits on a rock amidst green trees and foliage

Welcome to the IGS website!

As state geologist and director of the Iowa Geological Survey, it is my pleasure to welcome you to our new and improved website.

A creek and a restored oxbow from above

Multi-Purpose Oxbows Reduce Nitrates

New IGS research shows the value of oxbows in reducing nitrate.

IGS Geode Cover 2019

The IGS Geode: A Look at 2019

Close-up of hands holding a core sample

Are there valuable, un-mined minerals in Iowa?