Boy Lake (Cass County)
Cass County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 11014300
Boy Lake (Cass County) has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.
- Boy Lake (Cass County) shows no stocking records in Minnesota DNR LakeFinder as of .
- Maximum depth 45 ft; surface area 3,308 acres, 2,007 littoral acres, 21.6 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 8.6 ft.
- Fish species DNR lists here: black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, burbot, greater redhorse, hybrid sunfish, largemouth bass, muskellunge, northern pike, pumpkinseed, and 8 more.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- Cass County, nearest town Boy River; DNR lake number (DOW) 11014300.
Depth map
Bathymetric contours from the Minnesota DNR lake survey; depths in feet. Simplified for the web; not for navigation.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | Minnesota DNR | SW corner of lake-state ownership. |
DNR fish survey, 2025
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Bluegill | Standard trap nets | 17.87 | 268 | 0.17 |
| Pumpkinseed | Standard trap nets | 3.60 | 54 | 0.16 |
| Yellow bullhead | Standard trap nets | 1.67 | 25 | 0.68 |
| Yellow perch | Standard trap nets | 0.87 | 13 | 0.15 |
| Black crappie | Standard trap nets | 0.87 | 13 | 0.51 |
| Rock bass | Standard trap nets | 0.80 | 12 | 0.29 |
| Bowfin (dogfish) | Standard trap nets | 0.73 | 11 | 4.97 |
| Northern pike | Standard trap nets | 0.47 | 7 | 1.08 |
| Northern pike | Standard gill nets | 13.47 | 202 | 1.24 |
| Bluegill | Standard gill nets | 11.87 | 178 | 0.25 |
| Yellow bullhead | Standard gill nets | 4.40 | 66 | 0.68 |
| Walleye | Standard gill nets | 3.93 | 59 | 2.26 |
| Yellow perch | Standard gill nets | 3.13 | 47 | 0.09 |
| Brown bullhead | Standard gill nets | 2.73 | 41 | 1.00 |
| Pumpkinseed | Standard gill nets | 1.73 | 26 | 0.14 |
| Largemouth bass | Standard gill nets | 1.40 | 21 | 1.11 |
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.
Boy Lake is a 3,466-acre lake with 2,007 littoral acres, 26 miles of shoreline and a maximum depth of 45 feet located north of Longville, MN. A DNR owned public access is located on the southwest shore. The DNR has classified Minnesota's lakes into 43 different classes based on physical, chemical and other characteristics. Boy Lake is in Lake Class 25; lakes in this class are generally deep, clear and irregularly shaped. Other Lake Class 25 lakes in the Walker Area include Birch, Blackwater, Girl, Hand, and Inguadona. The lake is primarily managed for Walleye, Northern Pike, and Muskellunge. Bluegill, Black Crappie, Largemouth Bass, Yellow Perch, and Tullibee (Cisco) are secondary management species. A special regulation for Sunfish and Black Crappie (daily bag limit 10 Sunfish and 5 Black Crappie) was implemented March 1, 2022 as part of the state-wide Quality Sunfish Initiative (QSI) which aims to protect or increase size of Sunfish populations. Northern Pike abundance remained higher than management goals. Lengths ranged from 11 to 30 inches, with an average length of 18 inches and did not meet population size structure goals. Walleye abundance was below management goals for the first time since 1984. Walleye lengths ranged from 10 to 26 inches, with an average length of 19 inches. The 2019 year-class is strong and is maintaining the fishery. Yellow Perch numbers declined to a record low and were below management goals, but fish up to 9 inches long were sampled. Black Crappie abundance increased from previous surveys and exceeded size structure management goals. Black Crappie ranged in length from 9 to 15 inches. Bluegill abundance increased from previous surveys and exceeded management goals with fish up to 9 inches sampled. Largemouth Bass catch rates remained high with fish up to 16 inches long sampled. Targeted electrofishing surveys are required to develop long-range management goals for Largemouth Bass. Other fish species sampled include, Bowfin, Brown Bullhead, Greater Redhorse, Hybrid Sunfish, Pumpkinseed, Rock Bass, Shorthead Redhorse, Smallmouth Bass, Tullibee (Cisco), White Sucker, and Yellow Bullhead. People can have significant impacts on lakes and the fish populations they support. Harvest, lakeshore development, removal of shoreline vegetation, and introductions of invasive species can all adversely affect fish populations. Zebra Mussels, an aquatic invasive species (AIS) were identified in Boy Lake in 2025. AIS are moved from infested to non-infested waters by anglers, boaters, and lake shore owners and can adversely impact lakes and…
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.
Hear when the states we cover post stockings
One email a week in season: which waters in the states we cover were stocked, straight from the state agencies' own postings. No spam, no fishing-gear ads in the mail.
Free · double opt-in · unsubscribe anytime · we store only your email.