Description
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Digitized index sheets and 69 photogrammetric scans of original aerial reel film from an aerial survey of Lamar County, Texas, taken November 15,1940. Scale is 1:20,000. (1941-01-28)
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Notes
| This survey of Lamar County, Texas was commissioned by the U.S. Department of Agriculture Soil Conservation Service under contract number USDA-8920, Project A1S.22342, carried out by Aero Exploration Co., and indexed January 28, 1941. Access to original materials is available at the National Archives and Records Administration II facility in College Park, MD in Record Group 145, Survey Symbol CSY, Canisters: DN0170. File names use the following naming convention for index sheets: Record Group - State - County - Year - Sheet Number. And for photogrammetric scans: Record Group - Survey Symbol - Flight Line Number - Photograph Number. |