Taking part in the ninth annual Operation Take Back program, the Morris County Prosecutor's Office, in conjunction with three local police departments, will host drop-off locations for residents looking to properly dispose of unwanted prescription medicines. On Saturday, from 10 a.m. to 2 p.m., the Stop and Shop Supermarket on Littleton Road in Morris Plains; Randolph Township Municipal Building at 502 Millbrook Road in Randolph; and Mountain Lakes Fire Department at 400 Boulevard in Mountain Lakes will all be drop-off locations.