Incoming Resources
- The Rocky Mountains, Charles W. Maynard
- Lewis & Clark, the journey of the Corps of Discovery, a film by Ken Burns ; a [production of] Florentine Films and WETA-TV ; produced by Dayton Duncan and Ken Burns ; written by Dayton Duncan
- Yellowstone visitor guide
- Rivers, edens, empires, Lewis & Clark and the revealing of America
- Yellowstone
- Environment and native subsistence economies in the central great plains (with five plates), by Waldo R. Wedel
- The sound of mountain water, [by] Wallace Stegner
- Across the Great Divide, Robert Stuart and the discovery of the Oregon Trail, Laton McCartney
- Destination--Rocky Mountains, by Jonathan Grupper
- From Florida to the far West, R.E.L. Farmer