Palmdale City Hall will serve as the backdrop for the most difficult stage in the five-year history of the Amgen Tour of California. After a five-mile neutral section heading south on Sierra Rd., the route makes a left turn onto Angeles Forest Highway. Facing the riders is the imposing San Gabriel mountain range, and within a few miles the first of seven KOMs will be crested. After a blistering descent from Mill Creek Summit, the route turns to Upper Big Tujunga and then onto Angeles Crest Highway. From there, the riders continue on a 135-mile odyssey with more than 12,000 feet of climbing. The race will climb to a high point of nearly 8,000 feet as it rolls along the Angeles Crest Highway. Then, there is a brief respite as they descend to Wrightwood and over to Highway 138. The route again ascends as it passes through Crestline and Lake Arrowhead, as the cyclists take to the “Rim of the World” highway. Entering the Big Bear area, the riders will take the northern route around Big Bear Lake and then tackle the last rise to the finish at a more than 7,000-foot elevation at the Snow Summit ski area for the Amgen Tour of California’s first-ever alpine finish.