Local history -- Contra Costa County (Calif.).; Harrison, John, H., 1886 -; Work.; El Sobrante (Calif.) -- History.; American Smelting and Refining Company -- History.;
Local history -- Contra Costa County (Calif.).; American Smelting and Refining Company -- History.; American Smelting and Refining Company.; Asarco Inc.; Asarco Inc. -- History.; Smelting.;
Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Historic sites.; Historic mines.; Black Diamond Mines Regional Preserve (Calif.).;
Explosions.; Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.).; Pinole (Calif.) -- History.; Relocation (Housing).; Richmond (Calif.) -- History.;
Explosions.; Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.).; Pinole (Calif.) -- History.; Relocation (Housing).; Richmond (Calif.) -- History.;
Located in Orinda. Said to be the only remaining part of Moraga's Rancho past, located on a hill above Moraga Valley. Construction began in 1841; originally 3 rooms. Made of bricks to form 36" width exterior walls. Redwood cut from Moraga...