The National Hydrography Dataset Plus High Resolution map of waterways, created by the US Geological Survey ... the historical map of the Mississippi River's many courses. Previously: • Map ...

In a forecast, the NWS warned of "heavy rain, high elevation mountain snow and strong winds" hitting the Northwestern U.S. and into the Rocky Mountain states on Monday. The weather impacts are ...

If you’re planning on floating down the San Marcos or Comal Rivers this season, there’s a few things you need to know.