Hydrologists from the United States Geological Survey travel around and test the rivers for depth and speeds. Scott Whiteman says it’s all about gathering data. "It's just to ensure that the USGS is ...

U.S. Geological Survey (USGS) scientists have identified nationwide trends toward increasing streamflow in many areas of the nation since 1940 based on data collected from long-term USGS streamgages.

Groundwater provides drinking water for millions of Americans and is the primary source of water to irrigate cropland in many of the nations most productive agricultural settings. Although the ...