From a series of surveying photographs which could have been taken between 1908-1912. Borup spent the field season of 1910 on a topographical survey with the U.S. Geological Survey and spent time at the Yale Geological camp in the mountains of Virginia in 1911.
Source of Descriptive Information
George Borup. (1911). A Tenderfoot With Peary. New York: Frederick A. Stokes Company.