Washington Valley Park consists of approximately 719 acres that lie along the First Watchung Ridge in Bridgewater Township. The park is located between the first and second Watchung Mountains at the geographic center of Somerset County. It consists of Pine and Hemlock forests, open freshwater wetland marshes, impressive rock outcroppings, numerous historic features and a 21-acre reservoir. Washington Valley Park offers several recreational opportunities in an undisturbed natural setting, including hiking, mountain biking, and hawk watching. The more than seven miles of trails are great for hiking, and some of the best mountain biking in the state.