How do rivers choose their paths? Why do some rivers form single channels, while others divide into many threads? The questions may sound simple, but they are plagued by dynamic and complex forces ...

The steady rain currently pummeling most of California is expected to flood roads and lower elevations in the state. Accompanying heavy snowfall in the Sierra mountain range could bury some ...

Rivers are not fixed in place but rather tend to shift across the landscape. As they travel, they sow the seeds for diverse and productive ecosystems—forests, wetlands and floodplains—to emerge and ...