Center pivot irrigation system watering a cornfield in Arizona
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Center pivot irrigation system watering a cornfield in Arizona
Center pivot irrigation system watering a cornfield in Arizona
Steve Peterson making a stream discharge measurement.
USGS Nebraska Water Science Center Elkhorn-Loup Model project chief, Steve Peterson, making a stream discharge measurement. The project collected hundreds of discharge measurements in 2006 to determine base flow in the study area.
USGS Nebraska Water Science Center Elkhorn-Loup Model project chief, Steve Peterson, making a stream discharge measurement. The project collected hundreds of discharge measurements in 2006 to determine base flow in the study area.
Historic Chicago water tower.
The historic water tower in Chicago, IL, built in 1869 and now a museum.
The historic water tower in Chicago, IL, built in 1869 and now a museum.