Aperçu gratuit du livre Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Geological report; Lieut. R.S. Williamson, Corps Topographical Engineers, in 1853.
Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Geological report; Lieut. R.S. Williamson, Corps Topographical Engineers, in 1853.