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Mary Lake (Hubbard County)

Hubbard County, Minnesota - DNR stocking history, depth and survey data

Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 29028900

Mary Lake (Hubbard County) has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.

Depth map

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Bathymetric contours from the Minnesota DNR lake survey mapped 9/2/1964 (orig map); depths in feet. Simplified for the web; not for navigation.

Public accesses

TypeOwnerWhere
concrete rampMinnesota DNRNorth end of lake; 1 to 2 unit parking; state park sticker required

DNR fish survey, 2025

SpeciesGearCatch per netTotal catchAvg lb
Largemouth bassStandard electrofishing163.571120.73
BluegillStandard trap nets12.25980.20
PumpkinseedStandard trap nets2.12170.22
Hybrid sunfishStandard trap nets1.25100.27
Northern pikeStandard trap nets1.1291.10
Largemouth bassStandard trap nets0.7561.82
Black crappieStandard trap nets0.3830.31
Brown bullheadStandard trap nets0.1211.51
Green sunfishStandard trap nets0.1210.05
Northern pikeStandard gill nets10.00301.59
BluegillStandard gill nets1.0030.06
Black crappieStandard gill nets0.6720.26
Yellow bullheadStandard gill nets0.3310.23
Hybrid sunfishStandard gill nets0.3310.74
Largemouth bassStandard gill nets0.3310.18
PumpkinseedStandard gill nets0.3310.04
White suckerStandard gill nets0.3312.46
BluegillSpecial trap nets7.921900.15
Black crappieSpecial trap nets0.75180.56
PumpkinseedSpecial trap nets0.54130.19
Hybrid sunfishSpecial trap nets0.1740.26
Green sunfishSpecial trap nets0.0820.05

Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.

Mary Lake is a 56-acre lake with a maximum depth of 41 feet located within Itasca State Park on the border of Clearwater and Hubbard Counties. A State Park daily or annual vehicle permit is required. There is a public water access with a concrete ramp and parking for two vehicles/trailers. Mary is an ideal lake to explore from a canoe or kayak with boats available for rent from the park. Special fishing regulations in effect on Mary Lake consist of a reduced 5-fish bag limit for both Black Crappie and sunfish species, and a 14 to 20-inch protected slot limit regulation for Largemouth Bass with one allowed over 20 inches. Statewide fishing regulations apply to all other species in Mary Lake. The lake is managed for Bluegill, Largemouth Bass, and Black Crappie. Bluegill were targeted in an early June survey catching 190 fish over three days. Lengths of captured fish reached 9.7 inches and averaged 5.5 inches. Ten percent of fish measured exceeded 8 inches in length. Largemouth Bass were also targeted early in the spring via night electrofishing and captured 112 in less than 45 minutes of effort. Lengths of those fish reached nearly 18 inches but averaged less than 10 inches. Although not specifically targeted, Black Crappie were captured most effectively in the spring traps nets. Lengths up to 12.8 inches were measured with 65% of the catch exceeding 10 inches. Northern Pike are abundant in Mary Lake. The 2025 catch rate of 10 fish per net was the highest in recent history. Northern Pike had an average size of 19 inches in length and over 1.5 lbs/fish with fish up to nearly 29 inches captured in the survey. Other species of fish captured in the 2025 survey were Brown Bullhead, Green Sunfish, Hybrid Sunfish, Pumpkinseed, Rock Bass, White Sucker, Yellow Bullhead, and Yellow Perch.

Minnesota DNR survey narrative, .

All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder

Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.

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