Several dozen mammals inhabit the park on a permanent or intermittent basis. Fox, ground-hogs, raccoons and numerous rodent species are resident. White-tail deer travel through the park as they move up and down the forested areas along Wolf Trap Creek, Old Courthouse Creek and Difficult Run. Beaver have intermittently resided along Wolf Trap Creek. The first systematic study of park mammals is currently on-going. A similar situation exists with reptiles and amphibians. While the park has much habitat conducive to reptiles and amphibians, including a number of acres of wetland as well as a two acre pond, they have yet to be systematically studied or documented. A project to do so is currently underway.