so the klamath river watershed is very big. the trinity river is the largest tributary to the klamath river, and from a fisheries perspective, the trinity is super valuable, and so we're at the head of this big valley--it's like 10 or 12 miles long--and our project is just down here. man: the yurok tribe along with the hupa valley tribe co-managing with federal agencies is part of the trinity river restoration program, and it's a 40-mile reach of river, restoring various aspects of the trinity from the degradation of anthropogenic influence over time, everything from mining era in the 1800s to water diversion to the central valley. weissmann: we're approximately a hundred miles from t reservation here, but the tribe, they see the value in restoring this habitat to benefit the river overall, and they definitely take a holistic approach. it's not just salmon. it's all the river's animals. boulby: this isn't our ancestral land, but this is wherour fishome from. the mini back in the 1800s destroyed the spawning grounds, completely d