Col. Dan Koprowski, St. Paul District commander, USACE, writes the first entry in the canoe voyage journal at the Mississippi River Headwaters, Lake Itasca, Minn., May 20, 2016. The U.S. Army Corps of Engineers, St. Paul District, is celebrating its 150th anniversary by canoeing the Upper Mississippi River from its headwaters at Lake Itasca to Lock and Dam 10, in Guttenberg, Iowa.
USACE photo by Patrick Moes
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