Mason Lake fishing: Cutthroat Trout, Rainbow Trout, Largemouth Bass

Target species: Cutthroat Trout, Rainbow Trout, Largemouth Bass

The lake

Mason Lake covers 981 acres in Washington, across Mason County. It is a lake: 93.7% of it is 85 feet deep or less; the deepest point measured is at least 90 feet (27.4 m). Our records hold 7 species for this water.

Aerial imagery: USDA NAIP 2017
USDA Farm Service Agency, NAIP 2017 aerial imagery (USGS The National Map) · Public domain

Depth and bottom

Deepest measured point: at least 90 ft (27.4 m). That is the deepest contour line: the bottom goes deeper. 93.7% of the water is 85 feet or shallower. We hold 71 depth contour lines for this water.

  • 0–5 ft: 5.1% of the water
  • 5–10 ft: 5% of the water
  • 10–15 ft: 5.8% of the water
  • 15–20 ft: 6% of the water
  • 20–25 ft: 5.3% of the water
  • 25–30 ft: 4.7% of the water
  • 30–35 ft: 4.5% of the water
  • 35–40 ft: 4.3% of the water
  • 40–45 ft: 4.5% of the water
  • 45–50 ft: 4.8% of the water
  • 50–55 ft: 4.7% of the water
  • 55–60 ft: 5.3% of the water
  • 60–65 ft: 5.8% of the water
  • 65–70 ft: 5.9% of the water
  • 70–75 ft: 5.1% of the water
  • 75–80 ft: 7% of the water
  • 80–85 ft: 9.9% of the water
  • 85–90 ft: 6.4% of the water

3 target fish, led by Cutthroat Trout

  • Cutthroat Trout — Feeding water: 50–65°F.
  • Rainbow Trout — Feeding water: 50–65°F.
  • Largemouth Bass — Feeding water: 65–85°F.

Also recorded here: Walleye, Rock Bass, Yellow Perch, Brown Bullhead.

Where this data comes from

  • Washington State Department of Ecology — Washington State Department of Ecology: depth contours: class A, a survey of the bottom.
  • 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.