Welcome     Mission     History     Location     Contact Us     Iowa DNR    
Geology and Water
Data Resources

< Geological Features of Iowa Map

Red ball icon Geologic Features of Interest in Iowa

Lacey Keosauqua State Park Backbone State Park Pike's Peak State Park McGregor's 19th Century Refrigerators Wildcat Den State Park Springbrook State Park Pilot Knob State Park Gull Point State Park Iowa Geological Survey - Trowbridge Hall Devonian Fossil Gorge Manson Meteorite Impact Loess Hills Gypsum - Ft Dodge Lead and Zinc Mining - Dubuque Area Lithograph City 'Jumbo' A Runaway Artesian Well Ancient Amphibians Geodes - Iowa's State Rock Deepest Oil Test well in Iowa MidContinental Rift Zone Coal Mining Dinosaurs in Iowa? Glaciers

"Click it to Pick it"

Above is a geologic map of Iowa showing the aerial distribution of indurated rock exposed or immediately beneath the glacial deposits. The various geologic systems are color coded in conjunction with our stratigraphic column.