Boy Lake fishing: Muskellunge, Northern Pike, Largemouth Bass

Target species: Muskellunge, Northern Pike, Largemouth Bass, Walleye, Smallmouth Bass, Burbot, Black Bullhead
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Boy Lake Public Water Access Site, 1 lane.

The lake

Boy Lake covers 3,420 acres in Minnesota, across Cass County. It is a lake: 93.3% of it is 30 feet deep or less; the deepest point measured is at least 45 feet (13.7 m). Our records hold 18 species for this water.

7 target fish, led by Muskellunge

  • Muskellunge — Feeding water: 65–75°F.
  • Northern Pike — Feeding water: 50–75°F.
  • Largemouth Bass — Feeding water: 65–85°F.
  • Walleye — Feeding water: 50–75°F.
  • Smallmouth Bass — Feeding water: 60–75°F.
  • Burbot — Feeding water: 40–50°F.
  • Black Bullhead — Feeding water: 70–80°F.

Also recorded here: Shorthead Redhorse, White Sucker, Black Crappie, Bluegill, Cisco, Rock Bass, Yellow Perch, Pumpkinseed, Bowfin, Brown Bullhead, Yellow Bullhead.

Boy Lake Township Hall.jpg
JonCarlsonCassCountyDFL · CC BY-SA 4.0

Depth and bottom

Deepest measured point: at least 45 ft (13.7 m). That is the deepest contour line: the bottom goes deeper. 93.3% of the water is 30 feet or shallower. We hold 44 depth contour lines for this water.

  • 0–3 ft: 22.1% of the water
  • 3–6 ft: 13.5% of the water
  • 6–9 ft: 11.2% of the water
  • 9–12 ft: 10.1% of the water
  • 12–15 ft: 7.5% of the water
  • 15–18 ft: 7.3% of the water
  • 18–21 ft: 7.6% of the water
  • 21–24 ft: 6% of the water
  • 24–27 ft: 4.4% of the water
  • 27–30 ft: 3.6% of the water
  • 30–33 ft: 2.5% of the water
  • 33–36 ft: 2.7% of the water
  • 36–39 ft: 0.9% of the water
  • 39–42 ft: 0.5% of the water
  • 42–45 ft: 0.3% of the water

Water and conditions

Our water temperature readings average 68°F; they do not cover the whole year, so this is not a yearly average. The coldest single reading we hold is 46°F and the warmest is 77°F; the warmest monthly average is 76°F. pH averages 8.2. These readings span 2017–2025.

MN; Cass County Map; Boy Lake Township.png
AEtheEditor · CC0

1 ramp or launch on this water

On this water we hold 1 trailer ramp.

  • Boy Lake Public Water Access Site — 1 lane, restrooms. DNR Division of Parks and Trails.

The place listed has no fee or opening hours on file: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.

Huset Log School House, Boy Lake Township, Cass County, MN-01.jpg
Myotus · CC BY-SA 4.0

What is hard here

Only 1 public ramp is on file, so the launch decides where you fish.

Where this data comes from

  • Minnesota DNR — Minnesota DNR: depth contours: class A, a survey of the bottom.
  • Minnesota DNR — Minnesota DNR: reported depths: class B, a depth figure measured and published by an agency, without a bottom map.
  • Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.