From beer labels to literary classics like A River Runs Through It , trout fishing is a beloved feature of the iconography of the American West. But as Jen Brown demonstrates in Trout Culture: How Fly Fishing Forever Changed the Rocky Mountain West , the popular conception of Rocky Mountain trout fishing as a quintessential experience of communion with nature belies the sport’s long history of environmental manipulation, engineering, and, ultimately, transformation. A fly-fishing enthusiast...