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The St. Marys River, Michigan is a Great Lakes connecting channel about 63 miles long, flowing southeasterly between the State of Michigan and Province of Ontario, Canada, from the eastern end of Lake Superior into northern end of Lake Huron. The project, which was authorized by numerous acts between 1870 and 1986, provides for maintenance of channels at 27.5-28.5 feet deep in the St. Marys River, and in the Lake Superior and Lake Huron approaches thereto; constructing and operating four locks and two canals; constructing a hydropower plant of 14,000 kilowatt capacity (45,000 kilowatt ultimate capacity); constructing anchorage areas in the river above and below locks; and constructing various other works in conjunction with the project. The project also is the site of a Class A Visitors Center and park handling nearly 500,000 visitors annually.
Project Map Dredging Information Functional Project Map
RASTER MAPS: Course 6, West Neebish Channel - Rock Cut
St. Marys River, Michigan Survey Index Sheets
Section 1
Section 2
Section 3
Section 4
Birch Point Course
Brush Point Course
Point Louise Channel and Turn
Point Aux Pins Course
Vidal Shoals Channel
Birch Point Sheet 1
Brush Point Sheet 1
Point Louise Channel Sheet 1
Point Aux Pins Sheet 1
Vidal Shoals Sheet 1
Birch Point Sheet 2
Brush Point Sheet 2
Point Louise Channel Sheet 2
Point Aux Pins Sheet 2
Vidal Shoals Sheet 2
Birch Point Sheet 3
Brush Point Sheet 3
Point Louise Turn Sheet 1
Point Aux Pins Sheet 3
Vidal Shoals Sheet 3
Birch Point Sheet 4
Brush Point Sheet 4
Point Aux Pins Sheet 4
Vidal Shoals Sheet 4
Birch Point Sheet 5
Brush Point Sheet 5
Point Aux Pins Sheet 5
Vidal Shoals Sheet 5
Birch Point Sheet 6
Brush Point Sheet 6
Point Aux Pins Sheet 6
Vidal Shoals Sheet 6
Birch Point Sheet 7
Brush Point Sheet 7
Birch Point Sheet 8
Brush Point Sheet 8
Birch Point Sheet 9
Brush Point Sheet 9
Birch Point Sheet 10
Birch Point Sheet 11
2020 Bay Mills Anchorage
Birch Point Sheet 12
Birch Point Sheet 13
Birch Point Sheet 14
Birch Point Sheet 15
Birch Point Sheet 16
Birch Point Sheet 17
Birch Point Sheet 18
Birch Point Sheet 19
Birch Point Sheet 20
Soo Locks Canal Sheet 1
Bayfield Channel Sheet 1
Little Rapids Course 2 Sheet 1
Lake Nicolet Sheet 1
Soo Locks Canal Sheet 2
Bayfield Channel Sheet 2
Little Rapids Course 2 Sheet 2
Lake Nicolet Sheet 2
Soo Locks Canal Sheet 3
Bayfield Channel Sheet 3
Little Rapids Course 2 Sheet 3
Lake Nicolet Sheet 3
Bayfield Channel Sheet 4
Little Rapids Course 2 Sheet 4
Lake Nicolet Sheet 4
Bayfield Channel Sheet 5
Little Rapids Course 2 Sheet 5
Lake Nicolet Sheet 5
Little Rapids Course 2 Sheet 6
Lake Nicolet Sheet 6
Little Rapids Course 2 Sheet 7
Lake Nicolet Sheet 7
Little Rapids Course 3 Sheet 1
Lake Nicolet Sheet 8
Little Rapids Course 3 Sheet 2
Lake Nicolet Sheet 9
Little Rapids Course 3 Sheet 3
Lake Nicolet Sheet 10
Little Rapids Course 3 Sheet 4
Lake Nicolet Sheet 11
Lake Nicolet Sheet 12
Lake Nicolet Sheet 13
Lake Nicolet Sheet 14
West Neebish Course 5
West Neebish Course 6
West Neebish Course 7
West Neebish Course 8
West Neebish Course 5 Sheet 1
West Neebish Course 6 Sheet 1
West Neebish Course 7 Sheet 1
West Neebish Course 8 Sheet 1
West Neebish Course 5 Sheet 2
West Neebish Course 6 Sheet 2
West Neebish Course 7 Sheet 2
West Neebish Course 8 Sheet 2
West Neebish Course 5 Sheet 3
West Neebish Course 6 Sheet 3
West Neebish Course 7 Sheet 3
West Neebish Course 8 Sheet 3
West Neebish Course 5 Sheet 4
West Neebish Course 6 Sheet 4
West Neebish Course 7 Sheet 4
West Neebish Course 8 Sheet 4
West Neebish Course 5 Sheet 5
West Neebish Course 6 Sheet 5
West Neebish Course 7 Sheet 5
West Neebish Course 8 Sheet 5
WestNeebish Course 5 Sheet 6
West Neebish Course 7 Sheet 6
West Neebish Course 8 Sheet 6
West Neebish Course 5 Sheet 7
West Neebish Course 8 Sheet 7
West Neebish Course 5 Sheet 8
West Neebish Course 8 Sheet 8
West Neebish Course 5 Sheet 9
West Neebish Course 8 Sheet 9
West Neebish Course 5 Sheet 10
West Neebish Course 8 Sheet 10
West Neebish Course 5 Sheet 11
West Neebish Course 8 Sheet 11
Point Aux Frenes Turn
Round Island Course
Lime Island Channel
Pipe Island Course
Watson Reefs Course
Detour Passage
Point Aux Frenes Sheet 1
Round Island Sheet 1
Lime Island Sheet 1
Pipe Island Sheet 1
Watson Reefs Sheet 1
Up Bound Detour Passage 1
Point Aux Frenes Sheet 2
Round Island Sheet 2
Lime Island Sheet 2
Pipe Island Sheet 2
Watson Reefs Sheet 2
Up Bound Detour Passage 2
Round Island Sheet 3
Lime Island Sheet 3
Pipe Island Sheet 3
Watson Reefs Sheet 3
Up Bound Detour Passage 3
Round Island Sheet 4
Lime Island Sheet 4
Pipe Island Sheet 4
Watson Reefs Sheet 4
Up Bound Detour Passage 4
Round Island Sheet 5
Lime Island Sheet 5
Pipe Island Sheet 5
Up Bound Detour Passage 5
Round Island Sheet 6
Lime Island Sheet 6
Pipe Island Sheet 6
Up Bound Detour Passage 6
Round Island Sheet 7
Lime Island Sheet 7
Pipe Island Sheet 7
Up Bound Detour Passage 7
Round Island Sheet 8
Lime Island Sheet 8
Up Bound Detour Passage 8
Round Island Sheet 9
Lime Island Sheet 9
Up Bound Detour Passage 9
Round Island Sheet 10
Lime Island Sheet 10
Up Bound Detour Passage 10
Lime Island Sheet 11
Up Bound Detour Passage 11
Lime Island Sheet 12
Up Bound Detour Passage 12
Lime Island Sheet 13
Lime Island Sheet 14
Lime Island Sheet 15
Lime Island Sheet 16
Lime Island Sheet 17
Lime Island Sheet 18
Lime Island Sheet 19
Soo Locks Canal
Bayfield Channel
Little Rapids
Lake Nicolet
Middle Neebish Course 5
Middle Neebish Course 6
Middle Neebish Course 7
Middle Neebish Course 8
Middle Neebish Course 9
Middle Neebish Course 10
Middle Neebish Course 5 Sheet 1
Middle Neebish Course 6 Sheet 1
Middle Neebish Course 7 Sheet 1
Middle Neebish Course 8 Sheet 1
Middle Neebish Course 9 Sheet 1
Middle Neebish Course 10 Sheet 1
Middle Neebish Course 5 Sheet 2
Middle Neebish Course 6 Sheet 2
Middle Neebish Course 7 Sheet 2
Middle Neebish Course 8 Sheet 2
Middle Neebish Course 9 Sheet 2
Middle Neebish Course 10 Sheet 2
Middle Neebish Course 5 Sheet 3
Middle Neebish Course 6 Sheet 3
Middle Neebish Course 7 Sheet 3
Middle Neebish Course 9 Sheet 3
Middle Neebish Course 10 Sheet 3
Middle Neebish Course 5 Sheet 4
Middle Neebish Course 6 Sheet 4
Middle Neebish Course 7 Sheet 4
Middle Neebish Course 9 Sheet 4
Middle Neebish Course 10 Sheet 4
Middle Neebish Course 5 Sheet 5
Middle Neebish Course 6 Sheet 5
Middle Neebish Course 7 Sheet 5
Middle Neebish Course 9 Sheet 5
Middle Neebish Course 10 Sheet 5
Middle Neebish Course 5 Sheet 6
Middle Neebish Course 6 Sheet 6
Middle Neebish Course 7 Sheet 6
Middle Neebish Course 9 Sheet 6
Middle Neebish Course 5 Sheet 7
Middle Neebish Course 6 Sheet 7
Middle Neebish Course 7 Sheet 7
Middle Neebish Course 9 Sheet 7
Middle Neebish Course 5 Sheet 8
Middle Neebish Course 7 Sheet 8
Middle Neebish Course 9 Sheet 8
Middle Neebish Course 5 Sheet 9
Middle Neebish Course 7 Sheet 9
Middle Neebish Course 9 Sheet 9
Middle Neebish Course 5 Sheet 10
West Neebish Course 5 Sheet 6