Welcome!

As state geologist and director of the Iowa Geological Survey, it is my pleasure to welcome you to our website. It’s a great repository for all things related to Iowa geology and water resources, and I’m confident you’ll find a lot of interesting information to browse through. You’ll see that the site is organized around four main pillars of information exchange: research, services, popular interest, and data and resources.
Recent News

Our latest issue of The IGS Geode
Friday, January 27, 2023

New maps published as part of USGS STATEMAP program
Wednesday, September 14, 2022

Latest issue of The IGS Geode published
Tuesday, January 18, 2022
Popular Interest
1,500,000
Bags of rock chips in the IGS Rock Library
470,000,000
IGS geologists determined that a meteor struck northeast Iowa 470M years ago