Rose Hills Company | 1,301 followers on LinkedIn. Compassionate funeral, cremation and cemetery care and unrivaled options for lasting remembrance. | Rose Hills Memorial Park & Mortuary in Whittier, California is one of a kind with compassionate funeral, cremation and cemetery care and unrivaled options for lasting remembrance. Located in Southern California, Rose Hills is the largest single-operated cemetery in the nation. It encompasses 1,400 acres for current use or future development and features breathtaking views of downtown Los Angeles and the San Gabriel Valley.