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Mule-drawn plow at groundbreaking ceremony at EROS

Detailed Description

Undersecretary of the Interior William Pecora (from left, wearing hat), Merlyn Veren and USGS Earth Resources Observation and Science (EROS) Center Director Glenn Landis lean into the mule-drawn plow to turn earth at the EROS facility groundbreaking on April 14, 1972, near Sioux Falls, South Dakota.


Public Domain.