A map from the USGS showed that some rivers were 23,000 percent of their normal median level or higher as of Friday morning.

The National Hydrography Dataset Plus High Resolution map of waterways, created by the US Geological Survey, is the highest-resolution survey of its kind. With nearly 25 million rivers ...

Ten states could see flooding continue throughout the rest of this week and perhaps longer even though rain has moved on.

What lies beneath? Rivers: diverse habitats with broadly varying niches. Communities reflect and influence local, upstream, downstream, and broader landscape conditions. Water current pervades ...

Devastating, life-threatening floods have already started in some states as an atmospheric river causes heavy rainfall.

The Oregon Department of State Lands keeps a map of the vital waterways where the state's most iconic and vulnerable fish ...