Geological atlas projected to illustrate geographic explorations and surveys west of the 100th meridian of longitude : prosecuted in accordance with Acts of Congress under the authority of the Honorable the Secretary of War, and the direction of A.A. Humphreys, embracing results of the different expeditions under Geo. M. Wheeler.
- United States. Army. Corps of Engineers.
- Date:
- 1873-
Licence: Public Domain Mark
Credit: Geological atlas projected to illustrate geographic explorations and surveys west of the 100th meridian of longitude : prosecuted in accordance with Acts of Congress under the authority of the Honorable the Secretary of War, and the direction of A.A. Humphreys, embracing results of the different expeditions under Geo. M. Wheeler. Wellcome Collection. Source: Wellcome Collection.
