Saguaro West, Mount Lemmon & Sabino Canyon
Three active days covering Tucson's full ring of sky islands and desert wilderness — Saguaro National Park West and the Tucson Mountain District on day one, Mount Lemmon's summit trails and the Wilderness of Rocks on day two, and Sabino Canyon's canyon trail system in the Santa Catalinas on day three. Saguaro West is the smaller, geologically older unit of the park (Tucson Mountain volcanic formation, 70 million years old versus the Rincon Mountain granite of the east unit), with the King Canyon Trail rising through saguaro into volcanic desert to the Wasson Peak summit (4,687ft). The Wilderness of Rocks on Mount Lemmon is a distinct granite boulder wilderness above 8,000 feet where the forest opens into a landscape of massive granite domes and open meadows; the Wilderness of Rocks loop via Marshall Gulch and Lemmon Rock Lookout is one of the best mountain hikes in Arizona.