Sierra Road climbs from busy Piedmont Road into the residentially-populated hills over Milpitas. The grade is steady near 10%. This selective hill was used in the Tour of California and inflicted pain even on jaded professional cyclists. The views are fabulous, whether looking towards the Bay or towards Black Mountain, Mt. Day, Rattlesnake Butte, or Mt. Hamilton. At the top, Sierra Rd continues as a rolling, twisting, narrow road to Felter Road.
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