 The "lavishly appointed" mall opened on March 10, 1977 with of retail space, which included a Bloomingdale's (expanded from an original freestanding site opened in 1959) and a Saks Fifth Avenue.Until 2005, the shopping center was known as Riverside Square.The Shops at Riverside is a very high-end mall which caters to the affluent suburban areas surrounding Hackensack in Bergen, Essex, and Passaic counties in New Jersey as well as Rockland County in New York State.