Fisheries Lake Survey

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Name: Mulligan

Nearest Town: Lutsen
Primary County: Cook
Survey Date: 09/08/2004
Inventory Number: 16-0389-00

Public Access Information

Ownership Type Description
US Forest Service Unknown A 0.12 mile portage from Lily Lake to the south shore of Mulligan Lake.

Lake Characteristics

Lake Area (acres): 30.00
Littoral Area (acres): 12.00
Maximum Depth (ft): 62.00
Water Clarity (ft): 10.50

Dominant Bottom Substrate: N/A
Abundance of Aquatic Plants: N/A
Maximum Depth of Plant Growth (ft): N/A

Did you know? Each year, DNR fisheries personnel stock game fish fry and fingerlings in lakes lacking habitat for natural reproduction.

Fish Sampled up to the 2004 Survey Year


Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)


Normal Range

Brook Trout Gill net 0.7 N/A - N/A 1.36 N/A - N/A
Northern Pike Gill net 0.3 2.3 - 5.1 10.26 1.4 - 2.2
White Sucker Gill net 6.0 1.7 - 12.5 0.36 0.7 - 2.3
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.

Length of Selected Species Sampled for All Gear for the 2004 Survey Year

Species Number of fish caught in each category (inches)
0-5 6-8 9-11 12-14 15-19 20-24 25-29 30+ Total
Brook Trout 0 1 0 0 1 0 0 0 2
Northern Pike 0 0 0 0 0 0 0 1 1

For the record, the largest Freshwater Drum (Sheepshead) taken in Minnesota weighed 35 lbs., 3.2 oz. and was caught:

    Where: Mississippi River near Winona
    When: 10/5/99
    Statistics: 36" length, 31" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2010 Brook Trout fingerlings 1,000 27.2
2009 Brook Trout fingerlings 1,000 18.1
2008 Brook Trout fingerlings 1,000 31.1
2007 Brook Trout fingerlings 1,070 29.2
2005 Brook Trout fingerlings 1,008 32.9

Stocking Notes
1 - indicates fish purchased and stocked by private citizens and sporting groups.
2 - indicates fish purchased by the DNR for stocking.

Stocking Fish Sizes
Fry - Newly hatched fish that are ready to be stocked usually called "swim-ups". Walleye fry are 1/3 of an inch or around 8 mm.
Fingerling - Fingerlings are one to six months old and can range from a size of one to twelve inches depending on the species. Walleye fingerlings range from three to eight inches each fall.
Yearling - Yearling fish are at least one year old. A one-year-old fish can range from three to twenty inches depending on the species. Walleye yearlings average from six to twelve inches.
Adult - Adult fish are fish that have reached maturity. Depending on the species, maturity can be reached at two years of age. Walleye reach maturity between the ages of four and six years.

Fish Consumption Guidelines

No fish consumption guidelines are available for this lake. For more information, see the "Fish Consumption Advice" pages at the Minnesota Department of Health.

Status of the Fishery (as of 09/08/2004)

Mulligan Lake supported a very low number of brook trout in 2004. An increase in stocking frequency (to annual stocking) did not result in an increase in brook trout abundance. It appeared that survival of fish from the last three stockings had been very low. Northern pike were found in Mulligan Lake for the first time in this assessment. Northern pike prey heavily on stocked trout, and if they have become established in this lake, management for stream trout may no longer be possible.

White sucker were captured in moderate numbers. No green sunfish were found, but they have been taken in this lake in the past.

For more information on this lake, contact:

Area Fisheries Supervisor
1356 Hwy 61 E
Grand Marais, MN 55604
Phone: (218) 387-3056
Internet: Grand Marais Fisheries

Lake maps can be obtained from:

Minnesota Bookstore
660 Olive Street
St. Paul, MN 55155
(651) 297-3000 or (800) 657-3757
To order, use C1201 for the map-id.

For general DNR Information, contact:

DNR Information Center
500 Lafayette Road
St. Paul, MN 55155-4040
TDD: (651) 296-6157 or (888) MINNDNR

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    Toll-free: (800) 652-9093