For your consideration is this F.V. Hayden 12th Annual Report of Geological and Geographical Survey of the Territories: A report of progress of the exploration in Wyoming and Idaho for the year 1878. This is part one of the two part survey. In 1871, Hayden led America's first federally funded geological survey into the Yellowstone region of northwestern Wyoming, given directions by President Ulysses S. Grant's Secretary of Interior Columbus Delano. The survey consisted of some 50 men which included notables such as Thomas Moran, painter and famous frontier/Civil War photographer William Henry Jackson. The following year, Hayden and his work, Preliminary Report of the United States Geological Survey of Montana and Portions of Adjacent Territories; Being a Fifth Annual Report of Progress was instrumental in convincing Congress to establish Yellowstone as the first U.S. National Park, aided by Jackson's stunning large-format photographs and Moran's dramatic paintings. These publications also encouraged the westward expansion of the United States. The condition of this book is good for its age it shows wear consistent with its printing date of 1883; the pages show some browning. The measurements of this book is 9 1/4" x 6 1/4" x 3 1/4".