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Maple Leaf Lake

St. Louis County, Minnesota - DNR stocking history, depth and survey data

Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 69070000

DNR records show 3 stocking entries at Maple Leaf Lake since 2017, most recently walleye fingerlings in 2025 (900 fish).

Maple Leaf Lake has 3 DNR stocking records across 3 years (2017-2025): walleye (3).
The most-stocked species by count is walleye: 2,000 fish on record.
Maximum depth 51 ft, mean depth 14 ft; surface area 100 acres, 49 littoral acres, 2.4 miles of shoreline, per the DNR lake survey.
Fish species DNR lists here: black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow perch.
Most recent DNR fish survey: September 12, 2016 (standard survey).
St. Louis County, nearest town Alborn; DNR lake number (DOW) 69070000.

Depth map

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Bathymetric contours from the Minnesota DNR lake survey mapped 7/30/1957 (orig map); depths in feet. Simplified for the web; not for navigation.

Stocking history

Year	Species	Size	Number	Pounds
2025	Walleye¹	fingerlings	900	100.0
2019	Walleye¹	yearlings	100	100.0
2017	Walleye¹	yearlings	1,000	100.0

¹ fish purchased and stocked by private citizens and sporting groups.

Field note · Minnesota stocks by year, not by truck day: walleye fry go in within weeks of ice-out, fingerlings and yearlings mostly in fall, and stream trout in spring and fall. A row here means the fish went in during that year; DNR adds the year's rows after the fact, so the current year can look empty until winter.

DNR fish survey, 2016

Species	Gear	Catch per net	Total catch	Avg lb
Largemouth bass	Standard electrofishing	43.70	59	1.85
Bluegill	Standard trap nets	5.00	45	0.23
Black crappie	Standard trap nets	2.11	19	0.34
Pumpkinseed	Standard trap nets	1.67	15	0.18
Northern pike	Standard trap nets	1.11	10	1.72
Walleye	Standard trap nets	0.33	3	3.58
Hybrid sunfish	Standard trap nets	0.22	2	0.12
Yellow perch	Standard trap nets	0.22	2	0.09
Largemouth bass	Standard trap nets	0.22	2	0.07
Northern pike	Standard gill nets	4.17	25	1.76
Walleye	Standard gill nets	2.17	13	2.10
Black crappie	Standard gill nets	1.67	10	0.08
White sucker	Standard gill nets	0.17	1	3.97
Yellow perch	Standard gill nets	0.17	1	0.13

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.

A standard survey was conducted on Maple Leaf Lake during the summer of 2016 to evaluate and update information about fish populations and to evaluate the effectiveness of the privately funded Walleye stocking program. Largemouth Bass and Bluegill are the primary management species for Maple Leaf Lake. Maple Leaf has been stocked with Walleye fingerlings intermittently from 2003 through 2015 by the Maple Leaf Lake Association. Walleye abundance of 2.2 per gillnet lift was average compared to other similar Minnesota Lakes. The Walleye catch rate observed in 2016 was a historic high for Maple Leaf Lake (previous range; 0.0-2.0). Walleye average length was 17.2 inches. Walleye from six year-classes were present, ranging from 2005 through 2015. All Walleye sampled corresponded to stocked year-classes. These data suggest the Walleye stocking program has been effective. A total of 59 Largemouth Bass were sampled by electrofishing. The catch rate of Largemouth Bass was 43.7 fish per hour of electrofishing on-time which was average compared to other Duluth Area lakes. Average length was 14.5 inches. Anglers should expect good catches of Largemouth Bass in 2018 and beyond with strong 2008 and 2009 year-classes. Bluegill abundance was average at 5.0 per trapnet lift. Average length was 6.3 inches. Black Crappie abundance of 2.1 per trapnet lift was average compared to other similar Minnesota lakes. Average length was 7.6 inches with fish up to 12.6 inches sampled. Yellow Perch were scarce.

Minnesota DNR survey narrative, September 12, 2016.

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.

Maple Leaf Lake

Depth map

Stocking history

DNR fish survey, 2016

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