Title: Report of the exploring expedition to the Rocky Mountains in the year 1842
Subtitle: and to Oregon and north California in the years 1843-44
Subjects: Description and travel, Botany, Geology, Paleontology, Meteorology, Observations, Astronomy, Discovery and exploration, Exploring expeditions, Discoveries in geography, American, Découverte et exploration, Descriptions et voyages, Plants, Travel
Places: California, Oregon, Rocky Mountains, United States, West (U.S.), Pacific States, Pacific Coast (U.S.), Oregon Territory