South Dakota Water Science Center
USGS IN YOUR STATE
USGS Water Science Centers are located in each state.
USGS Streamail System
The USGS Streamail system allows you to request, by email, the most recent USGS river stage and streamflow data for surface-water sites throughout the nation. To use the system, send an email to "firstname.lastname@example.org" and in the "Subject" line, put in a USGS station number. An email will be sent back to you with the most recent river stage and flow.