National Park Service
Near Dickerson, Maryland
Steamtown National Historic Site
Blue Marsh Lake
Near Reading, Pennsylvania
Catoctin Mountain Park
Near Sabillasville, Maryland
Meadowood Special Recreation Management Area
Near Nanjemoy, Maryland
George Washington Birthplace National Monument
Near Colonial Beach, Virginia
Catoctin Mountain Park
Near Thurmont, Maryland
Catoctin Mountain Park
Catoctin Mountain Park
Near Thurmont, Maryland
Raystown Lake
Near Hesston, Pennsylvania
Cape Cod National Seashore
Near South Wellfleet, Massachusetts
Cape Cod National Seashore
Near South Wellfleet, Massachusetts
Cape Cod National Seashore
Near Wellfleet, Massachusetts
Raystown Lake
Near Hesston, Pennsylvania
Cape Cod National Seashore
Near Wellfleet, Massachusetts
Cape Cod National Seashore
Near North Truro, Massachusetts
Cape Cod National Seashore
Near North Truro, Massachusetts
Cape Cod National Seashore
Near Truro, Massachusetts
Potomac Heritage National Scenic Trail
Near Potomac, Maryland
Potomac Heritage National Scenic Trail
Near Williamsport, Maryland
Douglas Point Special Recreation Management Area
Near Nanjemoy, Maryland
Douglas Point Special Recreation Management Area
Near Nanjemoy, Maryland
National Park Service
Near Easton, Pennsylvania
National Park Service
Near Annapolis, Maryland
Boston African American National Historic Site
Near Boston, Massachusetts
Boston National Historical Park
Near Boston, Massachusetts
Bureau of Land Management
Near Nanjemoy, Maryland