But an effort to restore the beleaguered Klamath Basin of Oregon and northern California is now underway that will dwarf all those that have come before. It will be the largest river restoration project ever undertaken. Like so many smaller dam removals, the Klamath project was driven first by simple economics. By early 2000, it was clear that these deteriorating old dams, owned by Portland-based electric power company PacifiCorp, would require at least $500 million in upgrades and repairs to make them safe and keep them functioning. It would be throwing good money after bad, and it would ensure a renewed fury in the battles over water management across the basin: toxic algae blooms in the lakes behind the dams were poisoning the rivers below all the way to the Pacific Ocean, 190 miles downstream. The dams had blocked 300 miles of salmon and steelhead spawning habitat, wrecking a fishery potentially worth billions of dollars, and one that native fishermen had depended upon for centuries before the dams were built. No one was happy with water management in the Klamath. PacifiCorp had, over the past years, installed wind and solar facilities that produce ten times the generating capacity of these dinosaur dams. More than 40 stakeholders, from irrigators to native tribes to conservation groups, and everything in between, participated in the protracted and exhausting sausage-making of an agreement to get rid of the dams, restore the watershed and the fishery, and create a new economy here, both in the restoration projects, and in the longest term, with farms and fish and a clean river that works for us all.