in the Rocky Mountains Author:Meriwether Lewis Subtitle: Great Difficulties and Dangers Encountered by Captains Lewis and Clarke; Discoveries of the Headwaters of the Columbia River; Graphically Told Publisher: The Superior Printing Co. Publication date: 1915 Subjects: Lewis and Clark Expedition/ (1804-1806) West (U.S.) Lewis and Clark Expedition/ 1804-1806 Biography