Sagamore Hill National Historic Site
Saguaro National Park
Saint Croix Island International Historic Site
Saint Croix National Scenic Riverway
Saint Paul's Church National Historic Site
Saint-Gaudens National Historic Site
Salem Maritime National Historic Site
Salinas Pueblo Missions National Memorial
Salt River Bay National Historical Park & Ecological Preserve
San Antonio Missions National Historical Park
San Francisco Maritime National Historical Park
San Juan Island National Historical Park
San Juan National Historic Site
Santa Fe National Historic Trail
Santa Monica Mountains National Recreation Area
Saratoga National Historical Park
Saugus Iron Works National Historic Site
Schuylkill River Valley National Heritage Area
Scotts Bluff National Memorial
Selma to Montgomery National Historic Trail
Sequoia National Park
Sewall-Belmont House National Historic Site
Shenandoah National Park
Shenandoah Valley Battlefields National Historic District
Shiloh National Military Park
Silos & Smokestacks National Heritage Area
Sitka National Historical Park
Sleeping Bear Dunes National Lakeshore
South Carolina National Heritage Corridor
Southwestern Pennsylvania Industrial Heritage Route (Path of Progress)
Springfield Armory National Historic Site
Statue of Liberty National Memorial
Steamtown National Historic Site
Stones River National Battlefield
Suitland Parkway
Sunset Crater Vocano National Memorial
