The Deal: According to guide Peter Vandergrift, chasing carp on the fly is what Montana trout guides do on their days off. Trout will always be king in Montana, but during the late summer months when the action lulls, the carp in the Missouri River not far from Bozeman are always big and plentiful. But don't think carp fishing is easy. You'll see hundreds if not thousands during a float, but of those, 20 might present the perfect shot. They can't be too deep, they need to be actively feeding, the fly has to land right on their nose, and it can't be moving too quickly. Catch six fish and you've had a pretty good day. Carp fishing the Missouri is easily comparable to redfishing on the salt flats, though we'd argue it's far more challenging.