Hatchery Detail


Name : Lake Roosevelt Net Pens
Province : Intermountain Longitude :
Subbasin : Columbia Upper Latitude :
Operating Agency : N/A
Funding Source : BPA
Description : The Lake Roosevelt Volunteer Net Pen Program was initiated in 1985 by Mr. Winn Self, owner of the Seven Bays Marina. He released 5,000 trout from one net pen that year. Prompted by the excellent harvest and growth rates of the net pen reared fish and limited space at the hatcheries, changes were incorporated at the hatcheries to rear 500,000 rainbow trout for Lake Roosevelt net pens. Today there are 46 net pens located throughout the reservoir that holds up to 750,000 rainbow trout. Net pens are usually filled in the fall, and the fish released the following May/June. Volunteers feed the fish daily, assist with the spring release after the reservoir begins to refill following the spring drawdown, and clean and maintain nets. Lake Roosevelt has one of the largest volunteer net pen projects in the country.
Releases & Returns
Hatchery releases of anadromous fish, within the geographic range of an ESU/DPS, are listed accordingly.
Province Subbasin Species ESU/DPS Released
in 2015
Returns to Collection
Facility in 2015
Data as of
Intermountain Columbia Upper Rainbow Trout 500,000 12 / 7 / 2015
Hatchery Program Reviews

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