Bill Cunningham

Polly and Bill Cunningham are lifelong hikers and wilderness advocates. They have collaborated on several other FalconGuides, including "Hiking New Mexico's Aldo Leopold Wilderness, Hiking New Mexico's Gila Wilderness," "Hiking California's Desert Parks, Hiking Death Valley National Park, Hiking Joshua Tree National Park," "Hiking Anza-Borrego Desert State Park, Wild Utah, "and "Wild Montana."