Norristown Farm Park is a 690-acre (279 ha) Pennsylvania state park in East Norriton and West Norriton Townships and the Borough of Norristown, Montgomery County, Pennsylvania, in the United States.It is operated in partnership with the Montgomery County Department of Parks. The park is a working farm on the site of Norristown State Hospital.Many colonial era farm buildings and homes are on the grounds. Hiking, bicycling, ball fields, fishing, picnicking, and cross-country skiing are available in the park. The park hosts musical concerts in the summer. Stony Creek flows through the park. Norristown Farm Park is just off Interstate 276 on West Germantown Pike.