"Broadway Quarry, on both sides of Broadway, near Hudson street, Oakland. The rock is a soft, friable, buff-colored sandstone, interbedded with soft, slate-colored shales. Idle in October, 1904." 1 "Crusher Quarry; E. B. & A. L. Stone Company, 900 Broadway, Oakland. Near their crushing plant on Laundry Farm; opened about 1899.