1987. 2002-06-01T04:00:00Z. 2015-06-25T15:09:48Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by U.S. Geological Survey, Map Distribution. English. cartographic image. Public. California, San Mateo County, San Mateo County (Calif.), U.S., and San Mateo County.