Acoustic Doppler current profiler floating in middle of Flambeau River near Bruce, Wisconsin on a winter day
By Upper Midwest Water Science Center
December 2022 (approx.)

Detailed Description
An orange acoustic Doppler current profiler (ADCP) floats in the middle of the Flambeau River near Bruce, Wisconsin near USGS streamgage 05360500 on an overcast winter day.
Sources/Usage
Public Domain.