A    I-68 (x82) Interchange       B  Hancock, MD   Happy Hills Campground 12617 Seavolt Road, Hancock, MD 21750-2733 Telephone(301) 678-7760      Big Pool, MD
                    Williamsport, MD
     Hagerstown / Antietam Battlefield KOA Holiday11759 Snug Harbor Lane, Williamsport, MD 21795 Telephone(301) 223-7571       I-81 Interchange   Leatherman's/Falling Waters Campsite 7685 Williamsport Pike, Falling Waters WV Telephone(304) 274-2791Keystone RV Center and Campground 15799 Young Rd, Greencastle MD Telephone(717) 597-0939   Yogi Bear's Jellystone Park9550 Jellystone Park Way, Williamsport,Maryland 21795 Telephone(301) 223-7117McMahon's Mill Campground 7900 Avis Mill Rd, Williamsport MD Telephone(301) 223-8778       Hagerstown, MD    
                      
       I-270 Interchange     Evergreen Point Village 7589 Shields Dr, Frederick MD Telephone(301) 662-8121  7400 Guilford Dr, Frederick, MD 21704 Telephone301-631-0805![]() 5604 Buckeystown Pike, Frederick, MD 21704 Telephone(301) 698-1692![]() 10 Monocacy Blvd, Frederick, MD 21704 Telephone(301) 644-1483     
  11633 Greencastle Pike Hagerstown, MD Telephone(301) 582-9004  Maryland-National Capital Park 25900 Prescott Rd, Clarksburg, MD 20871 Telephone(301)601-9209      Woodbine, MD
Ramblin' Pines Campground 801 Hoods Mill Road, Woodbine, Md 21797 Telephone(410) 795-5161      Ellicot City        ![]() 3200 N Ridge Rd, Ellicott City, MD 21043 Telephone(410) 418-5780       I-695 (x16) to I-95 Interchange    |