The Appalachian Trail runs through Gapland State Park, but it is not open to bikes. Home of the Blue Trail, plus several easier trails, such as the Yellow. Take U.S. 40 west from Frederick and go right on Shookstown Road to Gambrill Park Road. From Frederick, take I-270 north to U.S. 40 west. Follow signs to the park, about 11 miles.
Parking costs two bucks.
Both parks are open daily from dawn to dusk. Try his 411 . Click here for Karl's Subscription Services to change your address, ask a question, pay your bill, renew your subscription, to sign up for a new subscription or buy a gift subscription.