Northern San Mateo County is split in two by the northern tip of the Santa Cruz Mountains, with towns on either side. To the east, famous tech companies like YouTube and biotech firms like Genentech make their homes in the unending sprawl near the airport; to the west, Pacifica sits quietly, a world away just over the ridge. Between, the Golden Gate National Recreation Area’s Sweeney Ridge and a handful of other lands provide incredible panoramic views.