Big Twin Lake

Popular selective gear water near Winthrop.  Fishing best in May/June and then again in Sept/Oct.  Fish deep with weighted lines during the hotter months of July and August.  WDFW access site on lake with toilet and gravel boat launch.  Private resort with camping and boat launch area.  Expect rainbows in the 10-18 inch range. Fall fishing should pick up as water temperatures start to cool down and fish come closer to the surface.  Winterkill events have occurred during the winter of 2016-2017 and 2017-2018 which has limited the number of large carryover fish available.

Two-pole fishing is allowed

Special fishing restrictions:

Shoreline access: Good - Shore access limited to WDFW sites at either ends of the lake.

Species you might catch

Lake information

County: Okanogan
Acreage: 65.40 ac.
Elevation: 1803 ft.
Center: 48.446238, -120.194755
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Catchable fish plants

Release Location: TWIN LKS BIG (OKAN)
Stock Date Species Number Released Number of Fish Per Pound Facility
May 6, 2021 Rainbow 600 1.75 WELLS HATCHERY
Apr 29, 2021 Rainbow 125 2.12 WELLS HATCHERY
Apr 28, 2020 Rainbow 1,200 2.12 WELLS HATCHERY
May 15, 2019 Rainbow 525 2.1 WELLS HATCHERY
Apr 25, 2019 Rainbow 1,200 23 WELLS HATCHERY
Apr 25, 2019 Rainbow 125 1.2 WELLS HATCHERY
May 17, 2018 Rainbow 1,500 1.85 WELLS HATCHERY
May 17, 2018 Rainbow 450 1 WELLS HATCHERY
Apr 13, 2018 Rainbow 150 0.8 WELLS HATCHERY
Apr 13, 2018 Rainbow 300 2.2 WELLS HATCHERY

Fishing prospects calendar

Rainbow trout

Fishing success for Rainbow Trout is generally best in the spring when thousands of fish are stocked statewide, but they can be caught year-round in most waters with a little patience and persistence. Success remains high into June and gradually declines as water temperatures increase and fish move offshore to stay cool. Fish that escaped the spring harvest return to the nearshore areas in the fall as waters cool off. Some waters may also be stocked again in the fall further boosting catch rates.
Chart showing fishing prospects throughout the calendar year