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USGS Hydrologic Technician making streamgage measurements

By Central Midwest Water Science Center March 2015 (approx.)
USGS Hydrologic Technician making streamgage measurement
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Detailed Description

U.S. Geological Survey, hydrologic technician, making a streamflow measurement on the Des Moines River near Stratford, Iowa.  Making routine streamflow measurements is important to make sure the streamflow data is as accurate as possible.

Sources/Usage

Public Domain.