Editing South San Francisco, California (section)

===Sign Hill===
{{Main|South San Francisco hillside sign}}

[[File:SSF Hillside Sign 2.JPG|thumb|right|The "South San Francisco The Industrial City" sign]]
South San Francisco has a landmark visible to travelers along the [[San Francisco Peninsula]] or through the nearby [[San Francisco International Airport]]. Sign Hill, near San Bruno Mountain State Park, displays huge letters on its mountainside <ref>[https://maps.google.com/maps?ll=37.663406,-122.418026&spn=0.004284,0.007094&t=k&hl=en Google Maps]. Maps.google.com (January 1, 1970). Retrieved on July 21, 2013.</ref> which reads "SOUTH SAN FRANCISCO THE INDUSTRIAL CITY." The letters are made of painted concrete and sit flush along the hillside. The sign was put up in the 1920s, and in 1996 was given a place in the National Register of Historic Places as an outstanding example of early 20th-Century "civic boosterism", a tribute to the past importance of heavy industry to the regional economy, and recognizing significant contributions the area made during World Wars I and II.<ref>{{NRISref |version=2013a |dateform=dmy |access-date=November 11, 2019 |link=no |refnum=96000761 |name=South San Francisco Hillside Sign}}</ref>

Sign Hill is a city park which provides hikers with access to the letters; the park includes {{convert|30|acre|ha}} of open space and almost {{convert|2|mi|km}} of hiking trails. During the 2020 pandemic, when access to many state and county parks and trails became restricted, the number of hikers climbing to the top of Sign Hill rose to more than thirty per day.<ref name="ssf">{{cite web|url=http://www.ssf.net/index.aspx?NID=183|title=Sign Hill|work=City of South San Francisco|access-date=April 2, 2013|archive-date=March 23, 2013|archive-url=https://web.archive.org/web/20130323083737/http://ssf.net/index.aspx?NID=183|url-status=dead}}</ref>