Written by Lorna Hainesworth, this document details Lewis’s celestial observation at Cumberland Gap on 23 November 1806. Col. Arthur Campbell prevailed on Lewis to make this observation to help settle a dispute concerning the location of the Walker Line.
Meriwether Lewis’s Survey at Cumberland Gap
Citation
Hainesworth, Lorna. Meriwether Lewis' Survey at Cumberland Gap. The Portolan, Washington Map Society, Spring 2018, pages 34-44.