Foundation and Earth
Isaac Asimov
Foundation (5)
The Way of Kings
Brandon Sanderson
The Stormlight Archive (1)
Oil!
Upton Sinclair
The Martian
Andy Weir
Mountaineering
The Mountaineers
60 Hikes Within 60 Miles: Denver and Boulder
Kim Lipker
Hiking Waterfalls in Colorado
Susan Joy Paul
Hiking Colorado: A Guide to the State's Greatest Hiking Adventures
Sandy Heise & Maryann Gaug
Hiking through History Colorado
Robert Hurst