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Fishing regulations at Mountain Lake, WA
Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Washington can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching Cutthroat trout as of May 12th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Min size
Measurement
Aggregate
The combined daily limit for an angler that fishes in both rivers and lakes on the same day is 5 trout, no more than 2 may be from rivers.
Brown Trout, Cutthroat Trout, Rainbow Trout, Golden Trout, Tiger Trout, and Grayling:
- In rivers, streams, and beaver ponds: Min. size 8". Daily limit 2.
- In lakes, ponds, and reservoirs: No min. size.Daily limit 5.
When fishing with bait, all trout that are lawful to possess and are equal to or greater than the minimum size are counted as part of the daily limit whether kept or released.
For more information please see State of Washington Fishing Regulations
Oncorhynchus clarkii
CASCADE CREEK
from mouth to Mountain Lake
- All species
- Selective gear rules.
- Trout
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit. Except: Release cutthroat trout and wild rainbow trout.
- Other game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
CASCADE LAKE
- All game fish
- 4th Sat. in Apr.-Oct. 31
- Statewide min. size/daily limit.
Regulations for
FAQ about Mountain Lake fishing
- Cutthroat trout - 6 members reported to have caught this fish
- Largemouth bass - 4 members reported to have caught this fish
- Coastal cutthroat trout - 2 members reported to have caught this fish
- @Maximum_fishn reported a nice Coastal cutthroat trout.
- @theodoppelt reported a nice Brook trout.
- @ashton.napier reported a nice Pink salmon.
- @ashton.napier reported a nice Dungeness crab.
- @leonshepard reported a nice Coastal cutthroat trout.
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