Most anglers focus on early and mid-summer trips when flows are higher on the South Fork. But fishing remains excellent through late August and September.
Bull trout are nothing like your typical rainbow, cutthroat or brown trout. They are a landlocked version of a Dolly Varden and although they do not visit saltwater, migrations are natural. A bull trout may hold in a deep run for a month then make a sudden 50-mile journey. Don’t count on them being in a single place at any given time.