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U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
The annual Loess Hills Prairie Seminar is held the first weekend in June, close to the summer solstice, with 200-300 prairie enthusiasts in attendance each year. Here, participants enjoy an educational hike through the hills at one of the seminars.
Public Domain. Don Poggensee
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