South San Francisco hillside sign

About

The South San Francisco Hillside Sign is a historic sign on a hillside overlooking the city of South San Francisco in San Mateo County, California. It was created in the 1920s and was listed on the National Register of Historic Places in 1996. The sign is the main feature of Sign Hill Park, a city park which provides 30 acres (12 ha) of open space, almost 2 miles (3.2 km) of hiking trails, and access to the letters of the sign itself.

The sign spells out "SOUTH SAN FRANCISCO THE INDUSTRIAL CITY" in white-painted concrete letters and is visible to drivers on northbound U.S. 101 and flights to San Francisco International Airport.