Fisheries Lake Survey

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Name: Sock

Nearest Town: Grand Marais
Primary County: Cook
Survey Date: 06/16/2005
Inventory Number: 16-0335-00

Public Access Information

Ownership Type Description
US Forest Service Unknown Carry-in on an old logging road through the BWCAW, from the Mayhew Lake access road, or portage from Dunn or South Lakes. Inside the BWCAW.

Lake Characteristics

Lake Area (acres): 20.00
Littoral Area (acres): 16.00
Maximum Depth (ft): 23.00
Water Clarity (ft): 7.90

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

Did you know? Minnesota has 11,482 lakes 10 acres or larger, of which 5,483 are fishing lakes. Excluding Lake Superior, the state has 3.8 million acres of fishing water. Minnesota's portion of Lake Superior is 1.4 million acres.

Fish Sampled up to the 2005 Survey Year


Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)


Normal Range

Brook Trout Gill net 7.0 N/A - N/A 1.02 N/A - N/A
Golden Shiner Gill net 21.0 0.5 - 9.3 0.09 0.1 - 0.1
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.

Length of Selected Species Sampled for All Gear for the 2005 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 2 0 11 1 0 0 0 14

For the record, the largest Brown Bullhead taken in Minnesota weighed 7 lbs., 1 oz. and was caught:

    Where: Shallow Lake, Itasca County
    When: 5/21/74
    Statistics: 24.4" length

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2015 Brook Trout fingerlings 1,500 66.8
2013 Brook Trout fingerlings 1,500 44.0
2011 Brook Trout fingerlings 1,500 46.9
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 1,000 27.3

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 06/16/2005)

The brook trout catch was the second lowest since the species was introduced, but ranked near the middle of the range for spring assessments of area stream trout lakes. The average size of brook trout caught ranked in the middle of the historical range for this lake, but exceeded the average size observed in most assessments of area stream trout lakes. The relatively large average size occurred because most brook trout were three years old, and few were two years old. Normally a population includes more younger fish than older fish, but, apparently, and for some unknown reason, brook trout stocked in 2002 survived in greater numbers than did those stocked in 2003. The growth rate of brook trout roughly equaled the average for the area.

The golden shiner catch was the highest observed from the lake, and was unusually high for the lake class. Most of those caught were too large to serve as prey for the brook trout.

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 C2211 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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