published by the citizen Ulises Urbane Lasepas in 1859, on the colonization of Lower California; and from the decree of the supreme government, of the 10th of March, A.D. 1857
constructed from surveys made in 1909, 1910 and 1911 by the consulting engineers of the International Boundary Commission, United States and Mexico, treaties of 1884, 1889 and 1900