Rose Hills claims to be "the single largest memorial park in the world," at approximately 1400 acres.

To assist in confirming burial locations, they have provided an online grave location search feature here:
Burial Locator

To aid your search when you visit, make a note of all the burial information provided in the online database search. Stop in at the Main Information front desk (not the little booth in the driveway) and ask them to help you with curb numbers. Curb numbers are not part of the online database and you will want these to help you narrow your search for graves in the lawns.