There is an archery shop in Kalispell, just south of town on 93, however, it doesn't have much trad stuff. There was another on the north side of town on Hwy 2 (don't know if it's still there), but it, too, caters to the wheely guys.
Lots of bow builders in the area, of course. Dan Tolke's shop is in Ronan, about 30-40 miles south of Kalispell. It's on Hwy 93 on the way to Kalispell if you're driving. Dave and Beth Windauer are a few miles south of town. Bear's Paws is about 20 miles south of Kalispell at Lakeside. There are another four-five builders in the Hamilton Area, including Howard Hill, Selway, Thunderhorn, Centaur and others and, of course, Dick Robertson further northeast. Good idea to call first before dropping in on them.