The cutthroat trout surfaced 100 feet below me, in a slick run where the creek worked its way along a steep talus slope. The fish was out of reach, for the moment. I had just broken out of dark timber ...

I've been around trout from coast to coast, through research, conservation work, and fly fishing, for most of my life. Uncovering the intricacies of these species-where they can survive, how they're ...