san francisco baycityalcatrazsan franciscofogislandbayvintagegouachemid-centurycaliforniaseascapeprisonlandmarkcollectionretro
A vintage gouache illustration of Alcatraz Island rising from thick San Francisco bay fog. Bold flat colour and simplified forms shape the rocky cliffs and pale cellhouse, painted in muted slate blues, fog greys and weathered ochre. Smooth graphic fog layers roll low across the water while a soft flat grey sky keeps the island anchored in the bay.