Alum Creek’s 3,387-acre reservoir and 4,630-acres of gently rolling span of fields and woodlands provides a hub of recreational activity just minutes from Ohio’s capital city. Managed by the US Army Corp of Engineers the northern section is strictly for paddling while the southern area is popular for fishing and sunbathing. Noted as Ohio’s largest inland beach of 3000 feet of shoreline, there includes bathrooms, a changing area and a concession stand. The campground hosts 286 sites in wooded and open areas as well as views of the lake.

The Alum Creek MTB trail system is located in Delaware County within the park. It is maintained by the Central Ohio Mountain Bike Association (COMBA). The trail system is located on the east side of the reservoir.

Long before recorded history, man called this forest and the Alum Creek valley home. The Adena culture lived here over 2,000 years ago. Seven mounds constructed by the mound builders were identified along the creek. Six were excavated before the valley was flooded although archaeologists did not believe them to be burial mounds.