OSM tag name=Mussel Rock matches Mussel Rock in these Wikidata fields:
| Islands of Northern California | boundary=administrative, place=island, place=islet, admin_level |
| Islands of San Mateo County, California | boundary=administrative, place=island, place=islet, admin_level |
| Islands of the San Francisco Bay Area | boundary=administrative, place=island, place=islet, admin_level |
| Pacific islands of California | boundary=administrative, place=island, place=islet, admin_level |
| Rock formations of California | landmark, natural |
| Uninhabited islands of California | boundary=administrative, place=island, place=islet, admin_level |