National Register of Historic Places
Octagon, The
New York, New York County, New York
The record
- Listed
- March 16, 1972
- Type
- Building
- Address
- Welfare Island, New York
- County
- New York
- State
- New York
- Period of significance
- 1825 to 1899
- Contributing resources
- 1 building
- Coordinates
- 40.76911, -73.94351
- Reference number
- 72000880
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesLionel Pincus and Princess Firyal Map Division, The New York Public Library