Estimated flow, in cubic feet per second, exceeded 2 percent of the time

2.35 to 10.0

10.1 to 50.0

50.1 to 100

101 to 500

501 to 1,000

1,010 to 5,000

5,010 to 10,000

10,100 to 11,500

Interstate highway

U.S. highway

Minnesota State highway

U.S. Geological Survey 

streamgage and number 

(table 1)

04024000

EXPLANATION MINNESOTA WISCONSIN

169

35

2

53

1

0 10 20 KILOMETERS

0 10 20 MILES

Base map modified from U.S. Geological Survey, Minnesota Department of 

Natural Resources and other digital data, various scales

Universal Transverse Mercator projection, zone 15 North

North American Datum of 1983

93°00’ 92°30’ 92°00’ 91°30’

47°30’

47°00’

46°30’

Ely

Hibbing

Cloquet

Hoyt Lakes

Duluth

Carlton

Two Harbors

04024000

53

1

73

210

LAKE SUPERIOR

Estimated flow, in cubic feet per second, exceeded 50 percent of the time

0.116 to 0.500

0.501 to 1.00

1.01 to 5.00

5.01 to 10.0

10.1 to 50.0

50.1 to 100

101 to 500

501 to 1,110

Interstate highway

U.S. highway

Minnesota State highway

U.S. Geological Survey 

streamgage and number 

(table 1)

04024000

EXPLANATION MINNESOTA WISCONSIN

169

35

2

53

1

0 10 20 KILOMETERS

0 10 20 MILES

Base map modified from U.S. Geological Survey, Minnesota Department of 

Natural Resources and other digital data, various scales

Universal Transverse Mercator projection, zone 15 North

North American Datum of 1983

93°00’ 92°30’ 92°00’ 91°30’

47°30’

47°00’

46°30’

Ely

Hibbing

Cloquet

Hoyt Lakes

Duluth

Carlton

Two Harbors

04024000

53

1

73

210

LAKE SUPERIOR

Estimated flow, in cubic feet per second, exceeded 90 percent of the time

0.0191 to 0.100

0.101 to 0.500

0.501 to 1.00

1.01 to 5.00

5.01 to 10.0

10.1 to 50.0

50.1 to 100

101 to 346

Interstate highway

U.S. highway

Minnesota State highway

U.S. Geological Survey 

streamgage and number 

(table 1)

04024000

EXPLANATION MINNESOTA WISCONSIN

169

35

2

53

1

0 10 20 KILOMETERS

0 10 20 MILES

Base map modified from U.S. Geological Survey, Minnesota Department of 

Natural Resources and other digital data, various scales

Universal Transverse Mercator projection, zone 15 North

North American Datum of 1983

93°00’ 92°30’ 92°00’ 91°30’

47°30’

47°00’

46°30’

Ely

Hibbing

Cloquet

Hoyt Lakes

Duluth

Carlton

Two Harbors

04024000

53

1

73

210

LAKE SUPERIOR

Estimated flow, in cubic feet per second, exceeded 95 percent of the time

0.00877 to 0.100

0.101 to 0.500

0.501 to 1.00

1.01 to 5.00

5.01 to 10.0

10.1 to 50.0

50.1 to 100

101 to 261

Interstate highway

U.S. highway

Minnesota State highway

U.S. Geological Survey 

streamgage and number 

(table 1)

04024000

EXPLANATION MINNESOTA WISCONSIN

169

35

2

53

1

0 10 20 KILOMETERS

0 10 20 MILES

Base map modified from U.S. Geological Survey, Minnesota Department of 

Natural Resources and other digital data, various scales

Universal Transverse Mercator projection, zone 15 North

North American Datum of 1983

93°00’ 92°30’ 92°00’ 91°30’

47°30’

47°00’

46°30’

Ely

Hibbing

Cloquet

Hoyt Lakes

Duluth

Carlton

Two Harbors

04024000

53

1

73

210

LAKE SUPERIOR

WISCONSIN

NORTH

DAKOTA

SOUTH

DAKOTA

CANADA

IOWA

MINNESOTA

Study area

Selected Streamflow Distribution Maps for the St. Louis River Drainage Basin above U.S. Geological Survey Streamgage 04024000 at Scanlon, Minnesota

For more information concerning this publication, contact: The streamflow distribution maps should not be used for regulatory, permitting, or other legal purposes. The USGS provides these maps “as-is” for a quick-reference, but assumes no legal liability or responsibility resulting from the use of this information.

Director, USGS Minnesota Water Science Center 

2280 Woodale Drive

Mounds View, MN 55112

(763) 783–3100

For additional information visit https://mn.water.usgs.gov

Publishing support provided by the Rolla Publishing Service Center ISSN 2329-132X (online)

https://doi.org/10.3133/sim3390

Prepared in cooperation with the

Legislative-Citizen Commission on Minnesota Resources

U.S. Department of the Interior

U.S. Geological Survey

Scientific Investigations Map 3390

Sheet 2 of 2

Pamphlet accompanies map