Keywords: outdoor A hydrologic technician from the USGS Idaho Water Science Center measures streamflow in St Joe River at red Ives, ID. The USGS is collecting data at hundreds of sites on rivers and streams in six western states to document the 2015 drought. USGS scientists will analyze the data to identify which rivers and streams may be most vulnerable to future droughts A hydrologic technician from the USGS Idaho Water Science Center measures streamflow in St Joe River at red Ives, ID. The USGS is collecting data at hundreds of sites on rivers and streams in six western states to document the 2015 drought. USGS scientists will analyze the data to identify which rivers and streams may be most vulnerable to future droughts |