JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Editorial Use Only.
United States Forest Service volunteer at a fire lookout tower using an Osborne Fire Finder. This instrument is used to find a directional bearing (azimuth) to smoke in order to alert fire crews to the fire. Photographed at the Strawberry Peak Lookout Tower, Twin Peaks, California, USA.
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