The Columbia River, in its nearly 2000 kilometers contains 211 dams, nine nuclear reactors, over 1400 points idientified as radioactively contaminated and only two free-flowing stretches. In the early nineties, photographer Mark Ruwedel honoured the river that carried Lewis and Clark and hosted reactors that have produced 165,000 pounds of weapons-grade plutonium by canoeing and photographing the 83 free-running kilometers of the river known as the Hanford Stretch. Done in the style of a nineteenth-century naturalist’s expedition, this work forms a moving documentation of nature as both decimated and resilient.