James C. Flood Mansion, also known as Pacific-Union Club, in San Francisco, California, USA, was a townhouse for James C. Flood, a 19th-century silver baron. It was the first brownstone building west of the Mississippi River, and the stone was shipped around Cape Horn from the same quarry in Portland, CT, that was the source for all the brownstone in New York City. With The Fairmont Hotel, the only buildings on Nob Hill to structurally survive the 1906 San Francisco earthquake and fire. It was purchased by the Pacific-Union Club after the earthquake.