Marienville is an unincorporated community in Forest County, Pennsylvania, United States. Its altitude is 1,732 feet (528 m), and it is located at 41°28′12″N 79°7′29″W / 41.47°N 79.12472°W / 41.47; -79.12472 (41.4702014, -79.1247623). Other names for the community have included "Marion," "Marion Centre," and "Marionville. " Marienville is a major point on a well-known ATV trail. marion center is in indiana county actually not forest its Route 119 intersecting with 403