For much of the 20th Century, energy development often meant dam building projects across wild rivers. From Maine to Tennessee to one to many western rivers, barriers to the natural flow of water, fish, and river life went up. Now at the beginning of the 21st, the reverse process may be underway as their removals take place and watershed restoration resumes. The latest example of dams-coming-down will be the structure build across Elwah River in Olympic National Park in Washington. Its ...