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 ...

"An atmospheric river will surge onshore Wednesday/Thursday bringing heavy rain and snow to the Pacific Coast," the National ...

The weather impacts are associated with an atmospheric river that arrived over the weekend. According to the NWS map showing all weather alerts currently in place for the U.S., most weather impacts ...

The dark green areas towards the bottom left of the map indicate some planted forest. It is possible that you might have to identify river features directly from an aerial photo or a satellite ...

An atmospheric river event is forecast to bring rainfall, snow, and the potential for flooding to parts of California this week.

The Charles River, for example, has 10 different CSOs that flow into it. WBUR has built a tracker map that constantly updates based on real-time alerts for more than 180 CSOs across the state.

But first, let’s zoom out. I’m on the River Severn at this point here on the map… But the river actually starts up in the Cambrian Mountains of mid-Wales here, and runs all the way to into ...