- Saugus Iron Works National Historic Site (102)
- Acadia National Park (46)
- Saratoga National Historical Park (46)
- Marsh - Billings - Rockefeller National Historical Park (43)
- Minute Man National Historical Park (43)
- Morristown National Historical Park (43)
- Saint-Gaudens National Historical Park (43)
- Vanderbilt Mansion National Historic Site (42)
- Weir Farm National Historical Park (42)
- Show More ...
- National Heritage Areas Program (59)
- Inventory and Monitoring Division (38)
- National Register of Historic Places Program (5)
- National Historic Landmarks Program (4)
- National Center for Preservation Technology and Training (3)
- Eastern Rivers and Mountains Inventory & Monitoring Network (2)
- Geologic Resources Division (2)
- Greater Yellowstone Inventory & Monitoring Network (2)
- Mid-Atlantic Inventory & Monitoring Network (2)
- Show More ...
Showing 655 results for iron ...
Old Faithful Inn
Kirby Nature Trail
- Type: Place

Oregon Trail Ruts State Historic Site , also called the Guernsey Ruts, is located where the geography of the area forced the Oregon Trail to change course. At this point, the Trail was blocked from continuing along the North Platte River by a steep ridge of sandstone rock. It had to go up and over the ridge in order to continue heading west.
Gertrude Quinn Slattery
Congress Hall
Carnegie Museum of the Keweenaw
William Gifford
Cuba Vassall
- Type: Person

Cuba Vassall was the matriarch of a family that included abolitionists and community builders. As she navigated slavery and freedom in Massachusetts, Cuba advocated for her own and her family’s interests. In comparison with many formerly enslaved women of her era, Cuba Vassall’s life is relatively well documented.
Bird Key Wreck
- Type: Place

The construction and successful operation of the Washington Aqueduct epitomizes the Army Corps of Engineers entry into the field of public works and reflects the military influence on civil life in antebellum America. The Washington Aqueduct, constructed over 150 years ago, still supplies the nation's capital with public water today.
Commodore John Barry Memorial
John Fulton
- Type: Article

The Stonewall National Monument cultural landscape includes the streets and locations of the Stonewall Uprising, which took place from June 28 and July 3, 1969. While it was not the start or end of the fight for gay rights, the events at the Stonewall Inn and the surrounding streets of Greenwich Village in New York City were a major catalyst in organizing the modern LGBTQ civil rights movement. The streets, parks, and buildings of the landscape help reflect this history.
- Type: Person

Henry Knox, a key figure in the American Revolutionary War, was known for his military science expertise and crucial roles in battles like the Siege of Boston and the Battle of Yorktown. A close ally of George Washington, he contributed significantly to shaping the young nation's defense system as its first Secretary of War and was instrumental in founding West Point Military Academy.
Maria W. Stewart
- Type: Person

Abolitionist and women’s rights advocate Maria W. Stewart was one of the first women of any race to speak in public in the United States. She was also the first Black American woman to write and publish a political manifesto. Her calls for Black people to resist slavery, oppression, and exploitation were radical and influential.