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Mobile GPS unit

By Pacific Coastal and Marine Science Center
Man wears a backpack and holds a small device in one hand, a pole in the other, on a beach with coastal mountains far off.
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Detailed Description

USGS Ocean Engineer Gerry Hatcher walks along South Jetty Beach, south of Ventura Harbor in southern California, to record beach elevations using a handheld computer and mobile GPS equipment.

Sources/Usage

Public Domain.