"Recounts the last of the few river trips to follow Powell's path down the Green and Colorado before those rivers were dammed"--

The Green River, the most significant tributary of the Colorado River, runs 730 miles and has been stopped up by dams, slaked off by irrigation, and dried up by cities. Former raft guide and environmental reporter Heather Hansman paddles the river from source to confluence to see what the experience might teach her about the present and future of water in the West.