Colorado's Forest Canyon Greenbacks

“Using a detailed topographical map, he spotted a slot canyon (with rumored impassable interior waterfalls) below the trackless gorge, making it essentially isolated. For a committed fly-fisherman, this was like waving a red flag in front of a bull.” Armed only with a topo map and intrepid spirits, Jonathan Lee Wright and his brother take on the upper reaches of Big Thompson river in Colorado’s Rocky Mountain National Park in search of wild greenback cutthroats. In the Denver Post.