Every spring, high-country streams and rivers in the American West begin to swell with water as the region’s snowpack starts to dissipate. It’s easy to assume that the liquid flowing in these water ...

This year’s predicted spring runoff into Lake Powell has decreased yet again as the impacts of a dry winter begin to show. Hydrologists at the Colorado Basin River Forecast Center said Wednesday that ...

Urban development increases stormwater runoff, which can cause flooding and pollute waterways. Stormwater engineers design systems like ponds and wetlands to manage runoff from large developments.

Hydrologists show most streamflow out of the West's mountains is old snowmelt on a multi-year underground journey. New study finds that spring runoff is on average 5 years old. Growing communities and ...