Santee Trolley Square is a shopping center that features more than 45 nationally recognized retail stores, and is located at the last stop on the Green Line of the San Diego MTS Trolley System. The Square's outdoor ampitheatre hosts regularly scheduled live entertainment events, and has a maximum capacity of 250 seated patrons. Featured retail stores include Target, Old Navy, Staples, Barnes and Noble Booksellers, PetsMart, TJ Maxx and 24 Hour Fitness; in addition, Santee Trolley Square acts as a focal point for the Santee Sheriff's Community Safety Center.