NBC: Montana fly fishing guide and shop owner Jason Lanier hooks a feisty rainbow trout almost every day he hits the waters in the lower valley of the Flathead River system. From an angler's perspective, the catch is a thrill. Rainbows put up a good fight, much better than the one offered by the state's native westslope cutthroat trout.
"And cutthroats that have some rainbow genetics in them typically fight harder for sure," the owner of the Bigfork Anglers Fly Shop told NBC News.
About 20 million...