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The IGS Geode is available online!

Posted on January 26th, 2021

Cover of The IGS GeodeThe new issue of the Iowa Geological Survey’s annual report, The IGS Geode, is now posted online. Read about IGS research and activities, including stories on water supply and quality, geologic mapping to solve societal problems, new technology for subsurface data collection, Iowa’s Maquoketa Caves State Park, and more.

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