This primary source comes from the Records of the Office of the Chief of Engineers.
National Archives Identifier:
305611Full Citation: [Map of area in the vicinity of Berkeley Springs.]; ca. 1861 - ca. 1865; Records of the Office of the Chief of Engineers, Record Group 77. [Online Version, https://docsteach.org/documents/document/[map-of-area-in-the-vicinity-of-berkeley-springs], April 18, 2025]