Deep Lake (Thurston County)

2023 Trout Derby

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Deep Lake is open Year-Round and offers good opportunity for stocked rainbow trout. The lake also supports naturally reproducing populations of largemouth bass, bluegill sunfish, yellow perch, and pumpkinseed sunfish.  

Access, including a popular fishing dock, and a car-topper boat launch (no trailered boats) is available through Millersylvania State Park.

Anglers are reminded that a Discover Pass is required, in addition to the WDFW freshwater or combination fishing license, to use Washington State Parks.

Two-pole fishing is allowed

Shoreline access: Good - Bank access is located through Millersylvania Park

Species you might catch

Lake information

County: Thurston
Acreage: 62.90 ac.
Elevation: 198 ft.
Center: 46.907414, -122.912496
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Catchable fish plants

Release Location: DEEP LK (THUR)
Stock Date Species Number Released Number of Fish Per Pound Facility
May 3, 2016 Rainbow 2,572 2 CHAMBERS CR HATCHERY
Apr 14, 2016 Rainbow 164 0.67 TROUT LODGE COMMERCIAL
Apr 14, 2016 Rainbow 3,800 2.5 EELLS SPRINGS
Apr 21, 2015 Rainbow 3,805 2.47 EELLS SPRINGS
Apr 21, 2015 Rainbow 200 0.67 TROUT LODGE COMMERCIAL
Apr 14, 2015 Rainbow 200 0.8 LAKEWOOD HATCHERY
Apr 25, 2014 Rainbow 210 0.8 LAKEWOOD HATCHERY
Apr 11, 2014 Rainbow 3,816 2.4 EELLS SPRINGS
Apr 19, 2013 Rainbow 3,128 2.3 EELLS SPRINGS
Apr 18, 2013 Rainbow 3,128 2.3 EELLS SPRINGS

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