Recommended Books:
Lonely Planet Montana
Banff, Jasper and Glacier National Parks
Rough Guide Montana
The Rough Guide to Yellowstone and the Grand Tetons 1
Lonely Planet United States
Lonely Planet Calendar 2010
Rough Guide United States
My Life in and out of the Rough: The Truth Behind All That Bull**** You Think You Know About Me
Lonely Planet North America on a shoestring
USA and Canada on a Shoestring Gift Pack
Rough Guide North America
The Rough Guide to California 9