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Loess Hills of Iowa
Preparation Canyon State Park Iowa
Preparation Canyon near Onawa is typical of the Loess Hills terrain
Preparation Canyon State Park
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Sioux City Le Mars Onawa IOWA
Loess Hills Resources
Plymouth – Woodbury – Monona Counties
Some of the best things in life are right under our noses.  The Loess Hills of Western Iowa are one of them. These geological gems are rare around the globe.  You could go to China to find loess hills as extensive as those found in our backyard.  These lumps of earth extend from Western Plymouth County in Iowa into Northern Missouri.  Some of the  best are minutes away from Le Mars. They actually are dunes of Missouri River bottom soil blown by prevailing westerly winds after the