Fish Frank's Tract, Mildred Island, Big Break, Sherman Island, and adjoining sloughs. Try fishing the riffles at the lower end of the stream with october caddis dries. Nymphing below the barrier may produce some larger browns from Lake Britton. Fishing is very good. Dry fly fishing with small caddis emergers, BWO's, and midges is very productive most of the day.
Overcast days can be awesome.
With lots of weeds, precise casts are needed to place your fly between the weedbeds. Long fine leaders and stealth are needed to fool these wary rainbows and browns. Keep wading to a minimum to save this fragile watershed. Manzanita Lake, Lassen Park Clear, cool. Fishing is fair.