The structural and industrial materials of California (1906)
Aubury, Lewis E., 1862- · Sacramento, W. W. Shannon, Superintendent state printing · leaf 44
nd is about 100 feet long, 50 feet wide, and from 50 to GOfeet deep. The west end of the quarry is a massive block of granite, about 50feet square, which forms the side wall of the quarry. There are novertical seams, except those on each side of the mass, and no horizontalseams except a few cracks… … r V^.Hf;-^
Building stones · Portland cement · Clay · Mines and mineral resources
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