So Pithy

The Devonian Fossil Gorge was created in July 1993, the last time water burst over the spillway. When that water subsided, a picture emerged in the exposed limestone — thousands of fossils from the creatures that lived here 375 million years ago, when Iowa was a tropical sea. via The Gazette

The recent flooding once again sent water rushing over the spillway, widening the gorge and revealing new fossils. Also: the fact that Iowa was a tropical sea reminds us of the origins of Coralville’s name.