addition, he invented the Geier Hitch. Historic site The Frederick A. and Sophia Bagg Bonanza Farm is located in southeastern corner of North Dakota. The preserved Bagg Bonanza Farm was designated as a National Historic Landmark in 2005. See also History of agriculture in the United States#Wheat Corporate farming Days of Heaven – film depiction of a fictional bonanza farm References H. Drache, The Day of the Bonanza: A History of Bonanza Farming in the Red River Valley of the North (Lund Press, 1965) External links Wheat Farms, Flour Mills, and Railroads: A Web of Interdependence, a National Park Service Teaching with Historic Places (TwHP) lesson plan History of agriculture in the United States