The United States Geological and Geographical Survey of the Territories was established by an act of Congress on 2 March 1867 as an agency under the Department of the Interior (later the General Land Office) tasked to complete a geographical survey of the State of Nebraska which had been admitted to the Union the day before. The scope of the survey eventual grew to include all the American territories adjacent to the Rocky Mountains encompassing hundreds of thousands of square miles. The survey over its existence was headed by Dr. Ferdinand Vandeveer Hayden who published a number of reports between 1867 and 1883 on the region’s geography, geology, topography, ethnology, philology, paleontology and other allied subjects. Congress originally appropriated $5,000 in 1867 for the survey of Nebr