The Shasta Dam project would deliver more water to Central Valley farmers but a tribe could lose sacred sites and endangered salmon could lose habitat.

Trucks go back and forth on a bridge over Quartz Creek, a tributary of the McKenzie. They’re moving loads of rock, dirt and ...

Huge tributaries that ... s geological service. The river’s characteristic jet-black waters usually course through its thick maze of channels, but satellite images now show it drastically ...

While the U.S. Army Corps of Engineers maintains the Columbia River’s main channel, responsibility for smaller tributaries falls to the state, tribes, counties, cities or port districts.