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As a list:
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USGS Bldg.3, Menlo Park, CA
... Location: Menlo Park, CA, USA
Dynamic Map of Mount Hood, Oregon
... Location: Mount Hood, OR, USA
Topographic Map Reader
... Location: USA
USGS Topographer at Work
... Location: AZ, USA
USGS Topographers at Work
... Location: NV, USA
USGS Topographers at Work
... Location: NV, USA
USGS Topographer at Work
... Location: USA
USGS Topographers at Work
... Location: Littlefield, TX, USA
USGS Topographers at Work
... Location: USA
USGS Topographers at Work
... Location: Alabama Hills, CA, USA
USGS Topographers at Work
... Location: Alabama Hills, CA, USA
USGS Topographers at Work
... Location: Death Valley, CA, USA
USGS Topographers at Work
... Location: Death Valley, CA, USA
USGS Topographers at Work
... Location: Death Valley, CA, USA
USGS Topographers at Work
... Location: Death Valley, CA, USA
USGS Topographers at Work
Two USGS topographers circa 1925, working with an alidade and plane table. The man on the left is believed to be Roland Whitman Burchard, who was the topographer for the USGS Grand Canyon Expedition of 1923.... Location: USA
USGS Topographers
USGS topographic field party, circa 1925, with a Wye level on a tripod and two stadia rods.... Location: USA
USGS Topographers
USGS topographic field party in a horse-drawn wagon northwest of Sacramento, California, circa 1906. Note the U.S.G.S. on the seat.... Location: CA, USA
USGS Topographic Rod man
Rod man Koontz holding a stadia rod.... Location: Job, WV, USA
Triangulation Tower
USGS triangulation tower in West Texas.... Location: TX, USA