Devonian Fossil Gorge Guide
Devonian Fossil Gorge: A Walk Through Prehistoric Iowa Guide
Journey back in time at the Devonian Fossil Gorge, a unique geological site just outside of Iowa City. This remarkable area reveals a vast expanse of fossilized sea floor dating back 375 million years to the Devonian Period, when Iowa was covered by a warm, shallow sea. It's an incredible opportunity to explore ancient marine life and witness the power of natural forces. The Devonian Fossil Gorge was created in 1993 when the Coralville Reservoir overflowed during a major flood. The floodwaters scoured away the topsoil and exposed the underlying bedrock, revealing a treasure trove of fossils. What was once a hidden layer of history was suddenly brought to the surface, offering scientists and the public a rare glimpse into Iowa's prehistoric past. The site continues to evolve as natural erosion reveals new fossils. At the Devonian Fossil Gorge, you can walk among the exposed fossil beds and observe a diverse array of ancient marine life, including corals, brachiopods, crinoids, and fish. You can even try your hand at identifying fossils (collecting is prohibited to preserve the site). Informative signage provides insights into the geology and paleontology of the area. The site is open to the public year-round, offering a unique outdoor experience. While the Gorge itself doesn't offer food, nearby Coralville has a variety of restaurants.
Transportation
The Devonian Fossil Gorge is located near the Coralville Lake Dam, a short drive from Iowa City. While direct bus service is limited, you can take Iowa City Transit routes 11 or 12 to the Coralville Mall and then transfer to Coralville Transit Route 11 to get closer to the area. From there, it may require a walk or taxi/rideshare to reach the Gorge itself. Check both Iowa City Transit and Coralville Transit websites for the most accurate and up-to-date route information.