Steamtown National Historic Site
Blue Marsh Lake
Near Reading, Pennsylvania
US Army Corps of Engineers
Near Bernville, Pennsylvania
Independence National Historical Park
Near Philadelphia, Pennsylvania
Hampton National Historic Site
Near Towson, Maryland
Thomas Edison National Historical Park
National Park Service
Near Scranton, Pennsylvania
National Park Service
Near Gettysburg, Pennsylvania
Carter G. Woodson Home National Historic Site
Near Washington, District of Columbia
Gettysburg National Military Park
Gettysburg National Military Park
Near Gettysburg, Pennsylvania
Gettysburg National Military Park
Near Gettysburg, Pennsylvania
Governors Island National Monument
National Archives and Records Administration
Near Washington, District of Columbia
Federal Hall National Memorial
The White House and President's Park
Near Washington, District of Columbia
The White House and President's Park
Near Washington, District of Columbia
African Burial Ground National Monument
National Mall and Memorial Parks
Near Washington, District of Columbia
National Mall and Memorial Parks
Near Washington, District of Columbia
Frederick Douglass National Historic Site
Near Washington, District of Columbia
Arlington House, The Robert E. Lee Memorial
General Grant National Memorial
Gateway National Recreation Area
Near Sea Bright, New Jersey
Saint Paul's Church National Historic Site
Hamilton Grange National Memorial
Gateway National Recreation Area
Delaware Water Gap National Recreation Area
Near East Stroudsburg, Pennsylvania
USDA Forest Service
Near Burdett, New York
National Park Service
Near Philadelphia, Pennsylvania
Delaware Water Gap National Recreation Area
Near Blairstown, New Jersey
Delaware Water Gap National Recreation Area
Near Bushkill, Pennsylvania
National Park Service
Near Dingmans Ferry, Pennsylvania
Gateway National Recreation Area
National Park Service
Near Towson, Maryland
Raystown Lake
Near Huntingdon, Pennsylvania
US Army Corps of Engineers
Near Huntingdon, Pennsylvania
Catoctin Mountain Park
Near Sabillasville, Maryland
Catoctin Mountain Park
Near Thurmont, Maryland
Catoctin Mountain Park
Near Thurmont, Maryland
National Park Service
Near Sabillasville, Maryland
Catoctin Mountain Park
Near Sabillasville, Maryland
Raystown Lake
Near Hesston, Pennsylvania
Catoctin Mountain Park
Catoctin Mountain Park
Near Thurmont, Maryland
Catoctin Mountain Park
Near Sabillasville, Maryland
Raystown Lake
Near Hesston, Pennsylvania
Tioga-Hammond Lakes
Near Mansfield, Pennsylvania
Raystown Lake
Near Robertsdale, Pennsylvania
Raystown Lake
Near James Creek, Pennsylvania
National Park Service
Near Baltimore, Maryland
Raystown Lake
Near James Creek, Pennsylvania
Home Of Franklin D Roosevelt National Historic Site
Near Hyde Park, New York
Tioga-Hammond Lakes
Near Wellsboro, Pennsylvania
Raystown Lake
Near James Creek, Pennsylvania
US Army Corps of Engineers
Near Tioga, Pennsylvania
Vanderbilt Mansion National Historic Site
Near Hyde Park, New York
Eleanor Roosevelt National Historic Site
Near Hyde Park, New York
Sagamore Hill National Historic Site
Near Oyster Bay, New York
Raystown Lake
Near Saxton, Pennsylvania
Cowanesque Lake
Near Lawrenceville, Pennsylvania
Cowanesque Lake
Near Lawrenceville, Pennsylvania
Cowanesque Lake
Near Lawrenceville, Pennsylvania
US Army Corps of Engineers
Near Lawrenceville, Pennsylvania
Commander, Navy Installation Command (CNIC)
Near Patuxent River, Maryland
Fish and Wildlife Service
Near Smyrna, Delaware
Antietam National Battlefield
Near Sharpsburg, Maryland
National Park Service
Near Sharpsburg, Maryland
USDA Forest Service
Near Tionesta, Pennsylvania
Mount Morris Dam and Recreation Area
Chesapeake & Ohio Canal National Historical Park
Near Clear Spring, Maryland
Chesapeake & Ohio Canal National Historical Park
Near Sharpsburg, Maryland
Fish and Wildlife Service
Near Rock Hall, Maryland
Eastern Neck National Wildlife Refuge
Near Centreville, Maryland
National Park Service
Near West Orange, New Jersey
National Park Service
Near Harpers Ferry, West Virginia
Greenbelt Park
Near Greenbelt, Maryland
Greenbelt Park
Near Greenbelt, Maryland
National Park Service
Near Greenbelt, Maryland
Shenandoah National Park
Gateway National Recreation Area
Near New York, New York
National Park Service
Near Shirley, New York
Rock Creek Park
Near Washington, District of Columbia
Gateway National Recreation Area
Near New York, New York
National Park Service
Near Washington, District of Columbia
National Park Service
Near Potomac, Maryland
National Park Service
Near McLean, Virginia
Chesapeake & Ohio Canal National Historical Park
Near Potomac, Maryland
Gateway National Recreation Area
Near New York, New York
National Park Service
Near McLean, Virginia
Chesapeake & Ohio Canal National Historical Park
Near Potomac, Maryland
National Park Service
Near Washington, District of Columbia
Shenandoah National Park
Near Luray, Virginia
National Park Service
Near New York, New York
National Park Service
Near Washington, District of Columbia
National Park Service
Near Washington, District of Columbia
National Park Service
Near New York, New York
National Park Service
Near Washington, District of Columbia
National Park Service
Near New York, New York
National Mall and Memorial Parks
Near Washington, District of Columbia