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Potholes Reservoir

Potholes Reservoir is located about seven miles south of the City of Moses Lake. This body of water is open year-round and offers a variety of fishing opportunties for warmwater fish and trout.  Most anglers fish for Walleye, Smallmouth Bass, and Largemouth Bass.  Panfishing in certain years can be very good, but is inconsistent year-to-year.  During the winter, early-spring, and fall months, trout fishing can be very good for rainbows up to and exceeding 20 inches.  In certain years, the reservoir freezes over providing an ice fishery for Yellow Perch, Walleye, and Rainbow Trout.  The Lind Coulee Arm of Potholes Reservoir is a popular spot to ice fish.

A cooperative net pen operation between WDFW and MarDon Resort releases 50,000 sub-catchable (6-8 inch) Rainbow Trout.  These fish grow quickly in the productive reservoir and reach sizes 12 inches or greater by the fall.  MarDon Resort and Medicare Beach are very popular areas to catch Rainbow Trout.   

A large private resort, a state park, and several developed public access areas provide all necessary amenities for this large reservoir. See Washington State Parks website for ADA accessibility  information.)

Potholes Reservoir is one of the waters on which we conduct our annual Fall Walleye Index Netting (FWIN) surveys. The FWIN methodology was developed in Ontario, Canada as a means of monitoring a wide variety of biological parameters in Walleye populations in a standardized fashion using gill nets. Our latest report can be found here. http://wdfw.wa.gov/publications/01600/


Fishing Prospects Calendar

 JanFebMarAprMayJunJulAugSepOctNovDec
Largemouth bassNo OpportunityNo OpportunityNo OpportunityGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthNo OpportunityNo OpportunityNo Opportunity
Rainbow troutGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthNo OpportunityNo OpportunityNo OpportunityNo OpportunityNo OpportunityNo OpportunityGood fishing - All monthGood fishing - All month
Smallmouth bassNo OpportunityNo OpportunityNo OpportunityGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthNo OpportunityNo OpportunityNo Opportunity
WalleyeNo OpportunityNo OpportunityGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthGood fishing - All monthNo OpportunityNo Opportunity
LEGEND
Fishing Expectation

Excellent

Excellent Good Good Fair Fair Poor Poor
Type of Opportunity Full Month Full month 1st half of month only 1st half only 2nd half of month only 2nd half only No opportunity No opportunity

Species you might catch

Black crappie
Bluegill
Carp
Lake Whitefish
Yellow perch

Lake Information

Grant County
Lake Acreage: 14,281.5
Elevation: 1,042 feet
Eastside Washington

Lake Management Type
Mixed species - Warmwater emphasis

Sport Fishing Regulations & Seasons

Emergency Rule Updates
Fishing closures and openings happen constantly throughout the year. The E-Rules keep you up-to-date.


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This feature shows the general location of the selected body of water. Directions may not include routes to boat launches or other water access sites. Check below for access sites or read the description for specific access information. Please do not trespass on private property.
Two-Pole Fishing Allowed

Access Sites / Boat Ramps on this Lake

Fish Plants & Stocking Reports