Logged catches
Top fish species at Cooper Lake
Check which species have trophy potential in Cooper Lake
Cooper Lake fishing reports
Continue browsing catches and catch locations in the Fishbrain app
When are Brown trout biting on Cooper Lake?
Learn what time of year and day to go fishing at Cooper Lake. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.
Fishing regulations at Cooper 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 Brown trout as of April 2nd, 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
Salmo trutta
BOX CANYON CREEK
from mouth upstream approx. 2 miles to the 20' high waterfall, including that por- tion of the creek that flows through the dry lake bed
- All species
- CLOSED WATERS.
CLE ELUM RIVER
from mouth to Cle Elum Dam
- All species
- It is permissible to fish up to the base of Cle Elum Dam.
- Mar. 1-Nov. 30
- Selective gear rules.
- Dec. 1-Last Day of Feb.
- Selective gear rules except whitefish gear may be used.
- Trout
- Year-round
- Statewide min. size/daily limit. Except: Release rainbow trout and cutthroat trout.
- Other game fish
- Year-round
- Statewide min. size/daily limit.
above Cle Elum Lake to outlet of Hyas Lake
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
COOPER RIVER
from mouth to Cooper Lake
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
DE ROUX CREEK
from mouth to the USFS trail 1392 (De Roux Creek Trail)
- All species
- CLOSED WATERS.
DOMERIE CREEK
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
GOLD CREEK
including that portion that flows through the dry Keechelus Reservoir lakebed
- All species
- CLOSED WATERS.
GOLD CREEK OUTLET CHANNEL
from mouth to Gold Creek Pond
- All species
- CLOSED WATERS.
KACHESS RIVER
from mouth to Kachess Dam
- All species
- Selective gear rules.
- Sat. before Memorial Day-Oct. 31
- It is permissible to fish up to the base of Kachess Dam.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
from Kachess Lake (Reservoir) upstream to the waterfall approx. 1/2 mile above Mineral Creek
- All species
- CLOSED WATERS.
MANASTASH CREEK
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
MERCER CREEK
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
MINERAL CREEK
from mouth to the wilderness boundary
- All species
- CLOSED WATERS.
NANEUM CREEK
and tributaries
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
SWAUK CREEK AND TRIBUTARIES
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
TANEUM CREEK AND TRIBUTARIES
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
TEANAWAY RIVER
and tributaries except North Fork
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
TEANAWAY RIVER, NORTH FORK
mainstem and all tributaries from the mouth to Beverly Creek including Beverly Creek
- All species
- Selective gear rules.
- Trout
- Sat. before Memorial Day-Oct. 31
- Catch-and-release.
- Other game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
from Beverly Creek to the waterfall at the end of USFS Rd. 9737
- All species
- CLOSED WATERS.
WILSON CREEK
from BNSF RR Bridge upstream
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
CLE ELUM LAKE
(Reservoir)
- Kokanee
- Year-round
- Min. size 9". Max. size 15". Daily limit 5.
- Other game fish
- Year-round
- Statewide min. size/daily limit.
EASTON LAKE
- All species
- Selective gear rules.
- Trout
- Sat. before Memorial Day- Oct. 31
- Statewide min. size/daily limit. Except: Release rainbow trout and cutthroat trout.
- Other game fish
- Sat. before Memorial Day- Oct. 31
- Statewide min. size/daily limit.
FIORITO LAKES
- All species
- Internal combustion motors prohibited.
- All game fish
- Year-round
- Statewide min. size/daily limit.
GOLD CREEK POND
including outlet channel
- All species
- CLOSED WATERS.
KACHESS LAKE
Reservoir
- All species
- Chumming permitted. Two-Pole not allowed.
- Trout
- Year-round
- Min. size 14". Daily limit 2.
- Other game fish
- Year-round
- Statewide min. size/daily limit.
KEECHELUS LAKE
Reservoir
- All species
- Two-Pole not allowed. Chumming permitted.
- Trout
- Year-round
- Min. size 14". Daily limit 2.
- Other game fish
- Year-round
- Statewide min. size/daily limit.
KIWANIS POND
- All species
- Open for juvenile anglers, senior anglers and anglers with a disability who possess a designated harvester companion card only. Two-Pole not allowed.
- All game fish
- Year-round
- Statewide min. size/daily limit.
LOST LAKE
(Snoqualmie Pass area)
- Rainbow trout
- Year-round
- Min. size 14". Daily limit 2.
- Other game fish
- Year-round
- Statewide min. size/daily limit.
MATTOON LAKE
- All species
- Internal combustion motors prohibited.
- All game fish
- Year-round
- Statewide min. size/daily limit.
MCCABE POND
- All species
- Motors prohibited.
- All game fish
- Year-round
- Statewide min. size/daily limit.
NANEUM POND
- All species
- Open for juvenile anglers, senior anglers and anglers with a disability who possess a designated harvester companion card only. Two-Pole not allowed.
- All game fish
- Year-round
- Statewide min. size/daily limit.
TUCQUALA LAKE
- Trout
- Sat. before Memorial Day- Oct. 31
- Min. size 8". Daily limit 2.
- Other game fish
- Sat. before Memorial Day- Oct. 31
- Statewide min. size/daily limit.
UMTANUM CREEK
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
WENAS CREEK
from mouth to Wenas Lake and all tributaries
- All species
- Selective gear rules.
- All game fish
- Sat. before Memorial Day-Oct. 31
- Statewide min. size/daily limit.
Regulations for
FAQ about Cooper Lake fishing
- Brown trout - 21 members reported to have caught this fish
- Rainbow trout - 19 members reported to have caught this fish
- Cutthroat trout - 1 members reported to have caught this fish
- @Sammy_P reported a nice Rainbow trout.
- @Sammy_P reported a nice Brown trout.
- @Cleelumfishingofficial reported a nice Brown trout.
- @Cleelumfishingofficial reported a nice Brown trout.
- @zlemott reported a nice Rainbow trout.
Free trial available