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About this water
Mason Lake is a 977 acre lake in Mason County, Washington. State records show it stocked 182 times between 2001 and 2026. The most-stocked species are rainbow trout, kokanee and cutthroat trout. 3,110,258 rainbow trout have gone in across 153 releases.
Boat access nearby
2 mapped launches sit within 2 miles of Mason Lake, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Benson LakeBenson LakePublic
- Mason Lake ParkMason LakePublic
Stocking history
182 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Jun 8, 2026 | Rainbow · Mount Whitney | 31,677 | — | Eells Springs |
| Apr 7, 2026 | Rainbow · Goldendale | 56,100 | — | Eells Springs |
| Apr 1, 2026 | Rainbow · Goldendale | 33,190 | — | Eells Springs |
| Nov 10, 2025 | Rainbow · Goldendale | 2,825 | — | Eells Springs |
| Nov 10, 2025 | Rainbow · Mount Whitney | 200 | — | Eells Springs |
| Oct 15, 2025 | Rainbow · Goldendale | 9,500 | — | Eells Springs |
| Oct 14, 2025 | Rainbow · Goldendale | 4,616 | — | Eells Springs |
| Oct 14, 2025 | Rainbow · Goldendale | 1,147 | — | Eells Springs |
| Oct 13, 2025 | Rainbow · Goldendale | 6,705 | — | Eells Springs |
| Aug 19, 2025 | Rainbow · Goldendale | 39,735 | — | Eells Springs |
| Aug 18, 2025 | Rainbow · Goldendale | 47,120 | — | Eells Springs |
| Aug 18, 2025 | Rainbow · Goldendale | 43,540 | — | Eells Springs |
Showing the 12 most recent of 182. Stocking records for Mason Lake published by Washington Department of Fish and Wildlife. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Washington stocking report.
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