Mountain Avenue is a New Jersey Transit station in Montclair in Essex County, New Jersey, United States, along the Montclair-Boonton Line. The station is located on Upper Mountain Avenue, which gives the station its name.The station is the fifth stop in Montclair along the line heading towards Hackettstown and Dover, and the second heading towards Hoboken Terminal. This station building, constructed in 1893, is used as a private residence, and is on lease from the railway.Weekend service is not provided.
