Upper Mississippi River system
Defined in 1 dictionary — U.S. Code
United States Code
33 U.S.C. § 652 — for purposes of this section
the terms “Upper Mississippi River system” and “system” mean those river reaches having commercial navigation channels on the Mississippi River main stem north of Cairo, Illinois; the Minnesota River, Minnesota; Black River, Wisconsin; Saint Croix River, Minnesota and Wisconsin; Illinois River and Waterway, Illinois; and Kaskaskia River, Illinois;