This primary source comes from the Records of Boundary and Claims Commissions and Arbitrations.
National Archives Identifier:
305548Full Citation: View from monument at Summit looking E. across Waterton or Chief Mountain Lake along 49th parallel. Yellow peak on left bears N. 30. E; 1857 - 1862; Landscape Drawings of the Area Along the Northwest Boundary, 1857 - 1862; Records of Boundary and Claims Commissions and Arbitrations, Record Group 76; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/view-from-monument-at-summit-looking-e-across-waterton-or-chief-mountain-lake-along-49th-parallel-yellow-peak-on-left-bears-n-30-e, September 8, 2024]