Sugarloaf, South Farallones
From Islapedia
Sugarloaf, Southeast Farallon is the largest Islet within the Southern group. It is bustling with seabird activity and is home to the Northern Gannet, which is the only individual of its species on the entire west coast. The Gannet shares Sugarloaf with Brown Boobies and Blue-Footed Boobies.
Sugarloaf’s name is derived from its tall conical shape, resembling the form in which refined sugar was produced and sold until the late 19th century, when granulated and cube sugars were introduced.