United States Geological Survey Hydrologic Technician Britt Stock uses control lines and the help of an unidentified worker, left, to retrieve an Acoustic Doppler Current Profiler, or ADCP, center left, from the Mill River.
Current users sign in here.
© Copyright 2013, East Valley Tribune, Tempe, AZ. [Terms of Use | Privacy Policy]
A Division of 10/13 Communications