National Register of Historic Places
Portland Observatory
Also designated a National Historic Landmark.
Portland, Cumberland County, Maine
The record
- Listed
- April 24, 1973
- Type
- Building
- Address
- 138 Congress St., Portland
- County
- Cumberland
- State
- Maine
- Period of significance
- 1800 to 1824
- Contributing resources
- 1 building
- Coordinates
- 43.66540, -70.24824
- Reference number
- 73000122