Cartographers in the Field

Hal Shelton, “Cartographers in the Field,” 1940. Oil painting, 4 × 6 feet. USGS Library, Menlo Park, California. Photo by Terry Carr, USGS. Public domain.

Cartographers in the Field: “This Depression-era oil painting was created by USGS field man Hal Shelton in 1940. The painting depicts mapping techniques used in the early days of cartography, including an alidade and stadia rod for determining distances and elevations and a plane-table for sketching contour lines. A USGS benchmark is visible near the top. The straight white lines represent survey transects. Note the ‘US’ marking on the canteen: many of the USGS field supplies were obtained from Army surplus.” [Osher Map Library]

Author: Jonathan Crowe

Jonathan Crowe blogs about maps at The Map Room. His essays and reviews have been published by AE, Calafia, The New York Review of Science Fiction, the Ottawa Citizen, Strange Horizons and Tor.com. He lives in Shawville, Quebec.