Cowboy Trout is partly a memoir about fishing and partly a historical reflection on fly fishing in the West. The author writes a bit like an academic historian as he attempts to prove the origins of fly fishing in the West. He quotes numerous sources about the first explorers to Yellowstone and their prodigious fishing reports. They caught hundreds of fish per day (grasshoppers seemed to be the best bait and the fish weren't "trained to the fly" so that flies didn't work as well as they would have on Eastern fish.)
I read this while I was in Wyoming on a trip that included lots of fishing. The chapter on the discovery and creation of large flies for use out West proved extremely useful, as I chucked my small Eastern flies for the more robust Western type. And they worked!
For a fisherman interested in Yellowstone and the history of the old West, this was a fun read. Save it for your next fishing trip out to Montana. Thanks, Elliot. js