The 460-acre park is a stream valley park comprised of pasture, cultivated gardens, open fields, woods, hedgerows, orchards and wooded piedmont hills. The diversity of this habitat makes it an excellent area for wildlife. There are many species of raptors such as the Red-tailed Hawk, American Kestrel, and Great Horned Owl, which prey on a healthy population of small mammals such as rabbits, deer mice, and meadow voles. White-tailed deer and red fox are also plentiful. Songbird populations include Baltimore Oriole, Bobolink, Eastern Meadowlark, Indigo Bunting, Eastern Bluebird, and many others. Belted Kingfishers and Great Blue Herons are often seen around the Minebank Run.
The educational focus at Cromwell Valley Park is in three major areas - farming, history, and natural history.