Yosemite National Park: A Complete Hikers Guide
Jeffrey P. Schaffer made his first backpacking trip in a 1962 traverse of the Grand Canyon, at age 19. The following year the climbing frenzy seized him, which lasted until about 1972, some 200 roped ascents later. In that year he began working on his first book for Wilderness Press,The Pacific Crest Trail. Between then and the late 1980s, he was the sole or principal author of 12 guidebooks, and had mapped about 4000 miles of trail for his books and 15' topographic maps. Wilderness Press books authored or coauthored by Jeff includeHiker's Guide to the High Sierra: Yosemite,The Pacific Crest Trail: Southern California,The Pacific Crest Trail: Northern California,The Pacific Crest Trail, Vol. 2: Oregon and Washington, ,Desolation Wilderness and the South Lake Tahoe Basin,The Tahoe Sierra, andThe Geomorphic Evolution of the Yosemite Valley and Sierra Nevada Landscape.