
How did a 586-square-mile stretch of southeastern Washington sealed off in 1943 to make plutonium end up sheltering one of the last large blocks of shrub-steppe left in the Columbia Basin?
The Hanford Site was fenced off in 1943 to make plutonium for the Manhattan Project. Eighty years later, the same security buffer holds the largest intact shrub-steppe left in the Columbia Basin — an accidental refuge protected by contamination.















