The Fall River is fishing quite well too, with our best guide days happening on micro streamers and slender, tungsten beaded Perdigons in a variety of body and bead colors but always with a chunky bead to aid in sink rate! Brown and Olive and Purple have been solid for us on the nymphs, and black, olive or white streamers like a slum lord, jig minnow, croston’s minnow and a mini gulp. Never count out an Egg and a MOP for the Fall River, as some days the fish get kooky on stuff like that. 
There is a good PMD hatch going and fishing the cylcle starting with the nymph using a PMD Split Case or Micro Mayfly, Klinkhammer and Film Critic for emergers, KD Dun for the cripple and Comparaduns and Parachutes for the duns. Don’t forget the spinners and keep an eye on them especially if you plan to stay late in the day and fish to dusk. 
There have been decent to good hatches of olive caddis #16, and some yellow sally’s, plus a fair number of ants and beetle activity coming from the forest and stumbling into the river by accident. Don’t forget to add a purple or red hippie stomper to your terrestrial box, it transcends into the attractor/terrestrial offering really well and is a compliment to a crowe beetle or foam beetle that are a bit more realistic. 
One other thing I would carry in my fly box this week on the Fall River are green drake emergers and duns. Like the Metolius they haven’t quite popped as well as we hope for. Yet.