Side Trails » Glacial Age Floods
Between 20,000 and 9,500 years ago, the Mississippi River valley experienced glacial meltwater, outwash sediment, and giant floods.
Source: Iowa Department of Natural Resources
Iowa Pathways: Iowa History Resources for Students and Teachers
Home ~ My Path ~ Artifacts ~ Timeline ~ Quest ~ Teacher Resources ~ Project Information ~ SponsorsIowa Pathways © 2005 - 2015 Iowa Public Television