The Fall River is good and it’s crowded because of that. Beat the crowds by going early in the morning, or fishing after 3 or 4 PM until dark, or walking a ways away from the main parking areas and “normal” fishing holes.
Eggs, Worms, Mops, Perdigons, Jigs, 2 Bits, Slumpbusters and other euro streamers are all great flies.
Look for actual hatches of BWO and Midges and some gorgeous little amber colored caddis #14-16 that hatch in the Fall each year here. PMD’s are not through their yearly cycle quite yet, so keep an eye peeled for that hatch of little yellow mayflies and be ready for that (and any) mayfly hatch with nymphs, emergers, cripples, duns and spinners.