"The Adventures of Captain Bonneville, U. S. A., in the Rocky Mountains and the Far West" by |Washington Irving and Benjamin Louis Eulalie de Bonneville

Benjamin Louis Eulalie de Bonneville was an American officer in the United States Army, fur trapper, and explorer. When Captain James Bonneville left for California in May of 1832 his motives were mixed. Officially, the French-born officer was on a two-year leave of absence from the U. S. Army, but he carried orders to collect information on the geography, geology, and topography of the country. This book depicts his journey through the west.