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Fort Independence
Photo: Chris Wood (User:chris_j_wood)., CC BY-SA 4.0, via Wikimedia Commons · tap to enlarge
National Register of Historic Places

Fort Independence

Also known as The Castle; Castle William; Castle William & Mary; Fort Mary

On the National Register since 197056 years
Listed 1970Boston
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About

About Fort Independence

Fort Independence, at Castle Island, was added to the National Register of Historic Places on Oct 15, 1970. The Register lists it for its military, at the national level. The listing covers 15 acres.

What it isFort on Castle Island in South Boston, Massachusetts. From Wikidata (CC0). Read about it on Wikipedia ↗

PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 7 MB · National Archives↗
Through the years

1643 to today

  1. 1643Built
  2. 1970Added to the National Register of Historic Places
  3. 2026On the Register for 56 years
Visit

Finding Fort Independence

Castle Island, Boston

Directions

No other Register listing is within a short walk. The nearest are under Around it.

Around it

11 more Register listings within 2 miles

★ National Historic Landmark · D district · B building · S site. Each opens its own page.

BBoston Young Men's Christian AssociationTapestry Brick1 miBHarrison Loring HouseFrench Second Empire · Built 18651.1 miDSouth Boston Naval Annex Historic DistrictDistrict1.2 miBArlington Street ChurchColonial Revival · Built 18611.6 miDBoston Fish Pier Historic DistrictDistrict1.6 miBCommonwealth Pier FiveBeaux Arts1.7 miStDorchester Heights National Historic SiteGeorgian Colonial Revival1.8 miDDorchester Heights Historic DistrictFederal1.8 miDOld Harbor Reservation Parkways, Metropolitan Park System of Greater BostonDistrict1.9 miBCalf Pasture Pumping Station ComplexRomanesque Revival2 miDSaint Augustine Chapel and CemeteryGothic Revival2 mi

Memories of Fort Independence

The record says what it is. Neighbors know what it means.

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Questions about Fort Independence

Is Fort Independence on the National Register of Historic Places?

Yes. It was added on Oct 15, 1970 (Register number 70000921).

Is Fort Independence a National Historic Landmark?

No. It is on the National Register; Massachusetts has 189 National Historic Landmarks. The nearest is ROSEWAY (schooner), 2.2 miles away.

Can you visit Fort Independence?

Yes: it is open to visitors. Check opening times before you go.

Where can I read the history of Fort Independence?

In its National Register nomination, the form that put it on the Register: a 7 MB PDF at the National Archives, linked on this page.

Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 63797084 · Wikidata. Map tiles © OpenStreetMap contributors.