Rocklin is a town built on and named for granite rock. Forty-niners headed for Placer County gold fields noticed gleaming boulders scattered among the oak and pine, but a decade passed before the first Rocklin quarry supplied granite blocks to build the state capitol in Sacramento. By 1910 there were 22 quarries chiseling stone to build, among many, the United States Mint and city hall in San Francisco, Oakland's civic auditorium, the San Joaquin,...