A selection of the journals kept by the naturalists who explored the American West in the 1800s

The Journals of the Lewis and Clark Expedition

Townsend's Narrative of a journey across the Rocky Mountains, to the Columbia River

Nuttall's Journal of Travels Into the Arkansa Territory October 2, 1818-February 18, 1820

Journal Kept by David Douglas During His Travels in North America

John Muir:  My First Summer in the Sierra