Once the site of an iron furnace, Mont Alto State Park is the oldest state park in Pennsylvania. Picnicking is a very popular activity. Nearby attractions include Michaux State Forest and Penn State Mont Alto Campus.
The West Branch of the Antietam Creek offers excellent trout fishing and local mountain roads offer interesting short hikes and a flora which attracts a diversity of wildlife, especially woodland birds. Two picnic areas contain approximately 50 tables and two picnic shelters.
This park can be reached from Caledonia State Park on US 30, the Lincoln Highway, by traveling seven miles south on PA Route 233 or by traveling north on Route 233, one mile from the town of Mont Alto.