Potholes Reservoir

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Details | Weather | Overview | Special Rules

Fishing, boating, weather and lake information all in one place for Potholes Reservoir in Grant County, Washington. Information to include topographical and bathymetric maps, WDFW special fishing rules, targeted fish species present, acreage, depth, elevation and more when available.

Anyone interested in fishing Potholes Reservoir should consult with local guides and resources before heading out to fish.

Details for Potholes Reservoir

Topographic View
Latitude: 46.982364
Longitude: -119.291132

Target Species:

info not available

Potholes Reservoir Stats:

County:  Grant
State:  Washington
Location:  info not available
Access:  info not available
Acres:  28200
Elevation:  1046 feet
Avg Depth:  info not available
Max Depth:  142 feet
Bathymetric Map:  no map available

Current Weather Conditions
Weather system is currently down.

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Lake Overview:

Potholes Reservoir (23,000 acres): Located about seven miles south of the town of Moses Lake backed up by O’Sullivan Dam, this body of water has a year-round open fishing season. The results of annual surveys indicate an abundance of walleye and is has a plentiful supply of smallmouth bass. The daily limit for walleye is eight (8) fish; with a 12-inch minimum size and no more than one over 22 inches. The rule for smallmouth bass changes to: daily limit 10 fish, no minimum size and no more than one over 14 inches. A gear restriction (one hook with a maximum ¾ inch gap – see Crab Creek listing in Fishing regulations pamphlet for more details) remains in effect for the Crab Creek Inlet (from Moses Lake outlets to the confluence of the outlet streams) from March 1 through May 31, and is designed to prevent snagging of spawning walleyes. Fishing will also be very good for largemouth bass; daily limit 5, no minimum size, only Bass less than 12 inches may be retained, with no more than one (1) over 17-inches. Yellow perch, crappie, and bluegill populations remain at less than historic levels. Bluegill and crappie have a combined daily limit of 25 fish, with a 9-inch minimum size limit on crappie. Yellow perch also have a 25-fish limit (separate from the combined bluegill/crappie limit). The best time for warmwater species is in mid-summer through fall. The main reservoir and Lind Coulee arm are popular for fishing through ice in years when it is thick enough. The reservoir also produces fishing for rainbow trout as a result of production from a volunteer cooperative net-pen rearing project. A large private resort, a state park, and several developed public access areas provide all necessary amenities or this large reservoir. (See Washington State Parks website: http://www.parks.wa.gov/ada-rec for ADA accessibility information.)

Notice: Always check the latest Regulations & Seasons before venturing out to fish.

Fishing Forecasts & Reports: The Weather Channel - Fishing Forecast for Potholes Reservoir (WA),  WashingtonLakes.com - user submitted fishing reports

WDFW Special Fishing Rules 2010/2011 Season:

Species Season Rule Special Note
Bluegill Year-Round No minimum size. Up to 25 bluegill and crappie combined.
Crappie Year-Round Minimum size 9". Up to 25 bluegill and crappie combined.
Walleye Year-Round Minimum size 12". Daily limit 8. Only 1 over 22" may be retained.
Yellow Perch Year-Round No minimum size. Daily limit 25.
Other Game Fish Year-Round Statewide minimum size/daily limit.


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