Today, Iowa is a prairie state having a moderate relief and gentle slopes. From broad uplands to valley flooded plains, Iowa is an area which has seen many geological changes over the last half billion years! Running water and glaciers probably changed the land more than any other force. A great introduction to Iowa geography and geology.
10 mins. | IVPHIO94D $32.95 DVD
10 mins. | IVPHIO94V $29.95 VHS