Willow Grove Park was an amusement park located in Willow Grove, Pennsylvania, United States, that operated for eighty years from 1896 until the 1975 season. It was generally an alternative to the Woodside Amusement Park in Fairmount Park until its closure. The park operated under the name Six Gun Territory from 1972. After closure, announced in April 1976, the park sat vacant until the land was cleared for a large shopping mall known as Willow Grove Park Mall, which opened in August 1982.