A Silver Alert has been issued for Maricopa County. This is the Arizona Department of Public Safety. The Good Year Police Department is looking for 77-year-old Mary Helm. Mary is a white female, 5 feet 2 inches tall, 145 pounds, brown hair, brown eyes, last seen wearing a blue shirt, blue shorts, and gray shoes. She was last seen at her residence in the area of 13000 South 184th Avenue, Good Year, Arizona at 9 A.M. Mary was last seen driving her gray, 2016, Mercedes, GLC 300 with the Arizona License plate Z K A 4 G F. At 6:17 P.M. she was seen on camera around North Jackrabbit Trail and Interstate 10. At 7:17 P.M. her vehicle was seen in the area of North Litchfield Road and West Glendale Avenue. Mary suffers from a medical condition that can cause her to get lost and easily confused. Please contact Good Year Police with any information.