Iv'e done well trolling not far from Mossyrock ramp. After launching skirt the shoreline heading up the lake (away from the dam). You'll pass a bay and go around a point. Approx 2 miles from ramp you should see a small island not far off the shoreline. Start fishing just past this island and follow shoreline watching for a large boulder at waters edge (depending on lake elevation). Adjust your depth according to thermocline. White or pink wiggle hoochies, colored flies with a wiggle fin, can be productive. Tip them with a worm or shrimp. Good luck.