Johnson's Bibliographic Reference
Source Document Title
Message from the President of the United States, in answer to a resolution of the House of April 15, 1874, transmitting a report from the Secretary of War, relative to geographical and geological surveys west of the Mississippi
With an Index Illustration of a Series of Atlas Maps prepared under the Direction of 1st Lieut. Geo. M. Wheeler, Army Corps of Engineers
This maps areas in the southwestern states that were surveyed by exploration parties from the U.S. Dept. of the Interior and the U.S. Smithsonian Institution, especially the surveys conducted by F.V. Haydn, J.W. Powell and, in California, J.D. Whitney. Haydn made the first survey of the Yellowstone region of Wyoming; Powell made the first survey of the Grand Canyon; Whitney made the first survey of the highest mountain peak in the lower 48 states, Mount Whitney.