Just for information, the International Federation of Fly Fishers has their annual conclave (now it's the Fly Fishing Expo) scheduled at Montana State University, July 23-27th. Many seminars, more fly fishing personalities than either Larry or I know on a first name basis, exhibits and master fly tyers.
The fishing around town isn't too bad that time of year either.
More info on the IFFF Website: https://flyfishersinternational.org/Events/Fly-Fishing-Expo