Lake MerwinFishing
Lake Merwin fishing & fish stocking
Fish stocking records and fishing regulations for Lake Merwin in Washington. See the latest stockings below — which species were added, how many, and when — plus size and creel limits and where to get your Washington fishing license.
Regulations
Washington Dept. of Fish & Wildlife
Open year-round; reservoir level fluctuates with run-off and can make boat access difficult at times. Verify the current Sport Fishing Rules pamphlet for any lake-specific exception
| Species | Min. length | Daily creel | Notes |
|---|---|---|---|
| Kokanee salmon | — | 10 | No minimum size — the lake's primary fishery |
| Rainbow trout | — | 5 | Statewide lake/reservoir limit, combined with other trout species; no minimum size |
| Tiger Muskie | 50" | 1 | Statewide rule — must release any tiger muskie under 50" |
Get your fishing license
Buy or renew a license for Lake Merwin through the state portal.