Welcome!

Photo of Keith Schilling

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.

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Researchers looking at a display box
Researchers gathering samples of creek water
Forest scene with cliff
Researcher looking into a microscope

 

Recent News

Cover of IGS geode magazine

Our latest issue of The IGS Geode

Friday, January 27, 2023
Please enjoy an online copy of our magazine, The IGS Geode, showcasing some of the Iowa Geological Survey’s activities during the past year.
Bedrock elevation and quaternary thickness maps of Lee County, Iowa

New maps published as part of USGS STATEMAP program

Wednesday, September 14, 2022
Iowa Geological Survey staff recently completed 10 map products as part of the US Geological Survey STATEMAP program.
IGS Geode magazine cover

Latest issue of The IGS Geode published

Tuesday, January 18, 2022
Please enjoy an online copy of our magazine, The IGS Geode, showcasing some of the Iowa Geological Survey’s activities during the past year.
More news

Popular Interest

Photo of a fossil in a rock

30

If put end to end, core samples in the IGS Rock Library would stretch 30 miles

Photo of a meteorite

1,500,000

Bags of rock chips in the IGS Rock Library

Photo of geode interior

Learn more

470,000,000

IGS geologists determined that a meteor struck northeast Iowa 470M years ago