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.

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.




















