OSM tag name=Castle Rock matches Castle Rock State Park in these Wikidata fields:
| Parks in San Mateo County, California | boundary=national_park, landuse=recreation_ground, leisure=park, leisure=common |
| Parks in Santa Clara County, California | boundary=national_park, landuse=recreation_ground, leisure=park, leisure=common |
| Parks in Santa Cruz County, California | boundary=national_park, landuse=recreation_ground, leisure=park, leisure=common |
| Parks in the San Francisco Bay Area | boundary=national_park, landuse=recreation_ground, leisure=park, leisure=common |
| Santa Cruz Mountains | natural=peak |
| State parks of California | boundary=national_park, landuse=recreation_ground, leisure=park, leisure=common |
| Tourist attractions in Silicon Valley | tourism=museum, tourism=attraction |