Blythe Lake is located within the Columbia National Wildlife Refuge (CNWR) south of Potholes Reservoir. WDFW fishing regulations and licenses apply to all lakes within this federal refuge. Vehicle or walk-in access to these lakes is managed by the USFWS. WDFW recommends that anglers review access and other regulations on the CNWR website (http://www.fws.gov/columbia/). Anglers must make a short hike from the Corral Lake access site to fish the lake.
Blythe Lake was rehabilitated in 2007 and since has fished mostly well. Rainbow trout size ranges from 12-20 inches. Catch rates during certain years can be very high. This lake is best fishe from a boat, float tube, or pontoon boat.