Historic Resources Study
The Historic Resources Study of the Mississippi National River and Recreation Area was developed cooperatively by the National Park Service, and the U.S. Corps of Engineers, St. Paul District in 2003. The historic resources study includes eight chapters, with areas of interest ranging from the early geology of the Mississippi National River and Recreation Area to the growth of many cities along the banks of the river.
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Did You Know?
At Lake Onalaska, near LaCrosse WI, the Mississippi River is about 4 miles wide. The combination of water held behind Lock and Dam #7 and water held by damming the Black River form this broad reach of the Mississippi River.