Iowa Geological Survey 109 Trowbridge Hall Iowa City, IA 52242 (319) 335-1575 FAX (319) 335-2754
Iowa Geological Survey
The Winneshiek Lagerstätte
Many
paleontologists call it “the discovery of the decade in Ordovician
paleontology”. Rare fossils found
in a new stratigraphic unit recognized in northeast Iowa near Decorah. Click here for details.
The Midcontinent Rift is a failed rift, a great rip through the
earth's crust stretching for a thousand miles and crossing the center of
Iowa. Organic-rich lake sediments are potential petroleum source rocks
and overlying coarse clastics may serve as reservoir rocks.
“Our Common Ground”
is a series of Resource Information Fact Sheets describing services
and information available at the DNR-Geological Survey. We strive to
make information and technical assistance on earth and water resources
available to Iowans.
Easily locate and order U.S. Geological Survey 7.5 minute quadrangle
maps, county topographic maps and other popular maps of Iowa with our
new easy to use Web interface. These maps of local terrain conditions
serve outdoor recreation enthusiasts as well as scientists and other
professionals. Click here to enter.
Iowa's Water Quality Database
Ultimately we envision
Iowa STORET as a “one-stop shopping” location for all the state’s
water monitoring data.