In 2011, the U.S. Fish and Wildlife Service reintroduced bull trout to Oregon’s Clackamas River.

Bull trout are extremely sensitive fish, requiring cold, clean water to survive. They were completely eliminated from the Clackamas River—a watershed they had evolved in over hundreds of thousands of years—with the last sighting back in 1968.

Now they’re back, thanks to a healthy population in the Metolius River east of the Cascade Mountains. Here their story below.

Clackamas Complete: A Return of Bull Trout from Freshwaters Illustrated on Vimeo.