Books by Elizabeth Wenk
Discovering the Unique Geology
Discovering the Unique Geology of the Bergell Alps
John Muir Trail data book
John Muir Trail data book
One Best Hike : Mount Whitney
Top Trails : Yosemite
Wildflowers of the High Sierra and John Muir Trail
John Muir Trail
50 best short hikes Yosemite National Park and vicinity
One Best Hike : Grand Canyon