Gulf of the Farallones

Gulf of the Farallones is a gulf of the Pacific Ocean off the northern California coast. It extends westward from the opening of the San Francisco Bay and Drakes Bay to the Farallon Islands. Most of the gulf lies in Gulf of the Farallones National Marine Sanctuary, which protects about 1250 sqmi.

The gulf is home to major shipping lines to the Port of San Francisco, Port of Oakland, and Port of Richmond. The gulf has also historically been used as a dumping ground for various types of waste, including dredging sediment, industrial waste, sunk vessels, and barrels of low-level nuclear waste. Around 47,800 barrels of nuclear waste were dumped between 1946 and 1970; their location was largely unknown until mapping and monitoring efforts in the 1990s.

Farallones comes from the Spanish farallón meaning sea cliff and is a reference to the islands. Historical names for the gulf include Bahia De Puerto De San Francisco, Ensenada De Los Farallones, and La Bahia De Los Pinos.