This primary source comes from the Records of the U.S. Geological Survey.
National Archives Identifier:
516714Full Citation: Earthquake camp, near Steamy Point, east side of Yellowstone Lake; 1871; Records of the U.S. Geological Survey, Record Group 57. [Online Version, https://docsteach.org/documents/document/earthquake-camp-near-steamy-point-east-side-of-yellowstone-lake, April 28, 2024]