Geology

Learn about Iowa’s geology and ancient past by exploring land features and fossilized creatures.

Think Like a Geologist

Learn about Iowa's geology and ancient past by exploring land features and fossilized creatures.

Question

What land forms can be found in Iowa and what do they tell us about history?

Explore Geology

Fossils

Let’s learn about how rocks are formed and why we find fossils in them today.
Steep hilly landscape

Loess & Bluffs

Let’s learn about a unique landform found in only two places on Earth.
Cave arch with water running through it below

Caves

Let’s learn how limestone played a part in the formation of caves.

Discover Geological Sites