Grass Lake
WDFW logged 1 trout stocking date at Grass Lake in 2026 so far, 1,500 fish in all. The latest was on May 12, 2026. WDFW lists it as “Grass Lk (Maso)”.
WDFW data pulled . Latest record in the WDFW data for any water: Nov 4, 2026.
Grass Lake in numbers
- fish stocked in 2026, through Nov 6
- 1,500
- by the same date in 2025
- 0
- in all of 2025
- 0
Every stocking record
Every trout and kokanee release WDFW lists for this water in the last two years, newest first, then yearly totals since 2020. Counts include fry and fingerlings as well as catchable trout: WDFW calls catchable fish “legals”. Fish per pound is WDFW’s figure for each release; fewer fish per pound means bigger fish.
| Date | Species | Fish | Life stage | Fish per lb |
|---|---|---|---|---|
| May 12 | Cutthroat trout1,500 fish · Fry | 1,500 | Fry | 304 |
| Date | Species | Fish | Life stage | Fish per lb |
|---|---|---|---|---|
| May 15 | Cutthroat trout1,500 fish · Fry | 1,500 | Fry | 314 |
| Year | Stocking dates | Fish |
|---|---|---|
| 2026 | 1 | 1,500 |
| 2024 | 1 | 1,500 |
| 2022 | 1 | 1,500 |
| 2020 | 1 | 1,535 |
Trout stocked each year
2026 is outlined because the year is not over. The tallest full year is yellow. Counts include fry and fingerlings.
What is stocked here
| Species | Fish | Share |
|---|---|---|
| Cutthroat trout | 6,035 | 100% |
No single map point is given for this water in the USGS names database, so no map is shown.
Also in Mason County: Mason Lake, Spencer Lake, Lost Lake, Nahwatzel Lake, Trails End Lake, Cady Lake, Aldrich Lake, Devereaux Lake.
Source: WDFW Fish Plants dataset, data.wa.gov, Washington Department of Fish and Wildlife. Pulled . Check the agency and the current fishing rules before you go.