Possible Clues:

• Los Angeles settler Pio
• __ de Aneto (highest of the Pyrenees)
• Vermont ski area
• ___ Rivera (Los Angeles suburb)
• Trillionth, in metric names
• --- Rivera, Cal.
• ___ Rivera, Calif.
• __ de gallo salsa
• ___ de gallo sauce
• Boulevard where Fox Studios and the Los Angeles Convention Center are located