Anglers will have to wait until next year to catch trout at five Columbia Basin lakes where undesirable fish were removed last year.
In October the Washington State Department of Fish and Wildlife treated Sago, Hourglass, Widgeon and Upper and Lower Hampton lakes in Grant County with rotenone. Rotenone is a naturally occurring pesticide used to rid popular trout fisheries of pumpkinseed sunfish.
The state usually restocks waters with trout that measure 11 to 13 inches after rehabilitation, but that is prohibited in national refuges.
The five lakes in the Columbia National Wildlife Refuge instead were stocked with rainbow trout fingerlings. At two- to four-inches, they will grow to harvestable size by next spring.