Waubonsie State Park Maps

Waubonsie State Park Description

Waubonsie is located in the unique "Loess Hills," a landform found only along the Missouri River in Iowa and Missouri and in China. As glaciers melted 14,000 to 28,000 years ago, the Missouri River became a major channel for huge volumes of water and sediment during the summer. In winter, the volume of the meltwater was reduced, leaving the deposited sediments exposed to the wind. These sediments of silt, clay and very fine sand particles called "loess", were then carried by strong westerly winds and deposited when these winds encountered the steep slopes of the east valley wall. Waubonsie is