Sector Upper Mississippi River Marine Inspection Zone and Captain of the Port Zone
Sector Upper Mississippi River's office is located in St. Louis, MO. The boundaries of Sector Upper Mississippi River's Marine Inspection Zone and Captain of the Port Zone include all of Wyoming except for Sweetwater County; all of North Dakota, South Dakota, Nebraska, Colorado, Kansas, and Iowa; all of Missouri with the exception of Perry, Cape Girardeau, Scott, Mississippi, New Madrid, Dunklin, and Pemiscot Counties; that part of Minnesota south of latitude 46°20'00" N; that part of Wisconsin south of latitude 46°20'00" N, and west of longitude 90°00'00" W; that part of Illinois west of longitude 90°00'00" W and north of latitude 41°00'00" N; that part of Illinois south of latitude 41°00'00" N, except for Jackson, Williamson, Saline, Gellatin, Union, Johnson, Pope, Hardin, Alexander, Pulaski, and Massac Counties; that part of the Upper Mississippi River above mile 109.9, including both banks, and that part of the Illinois River below latitude 41°00'00" N.
