Seven Foot Knoll Light
Seven Foot Knoll Light at its original location (1900) | |
| Location | originally at the mouth of the Patapsco River in the Chesapeake Bay; relocated to the Inner Harbor in Baltimore, Maryland |
|---|---|
| Coordinates | 39°17′01″N 76°36′19″W / 39.2836°N 76.6054°W (current) 39°09′18″N 76°24′33″W / 39.1551°N 76.4091°W (original) |
| Tower | |
| Constructed | 1855 |
| Foundation | screw-pile |
| Construction | wrought-iron (originally cast-iron) |
| Automated | 1949 |
| Height | 40 ft (12 m) |
| Shape | cylindrical house |
| Heritage | National Register of Historic Places listed place |
| Light | |
| First lit | 1856 |
| Deactivated | 1988 |
| Focal height | 17 m (56 ft) |
| Lens | fourth-order Fresnel lens |
| Range | 12 nmi (22 km; 14 mi) |
| Characteristic | Fl WR 6s |
Seven Foot Knoll Light | |
Seven Foot Knoll Lighthouse at its present location | |
| Location | Pier 5, Inner Harbor, Baltimore, Maryland |
| Area | less than one acre |
| Built | 1875 |
| NRHP reference No. | 89001096 |
| Added to NRHP | August 22, 1989 |
![](https://en.wikipedia.org/wiki/Https://quickstatements.toolforge.org/#/v1=Q7457261|P31|Q39715||Q7457261|P625|@39.2836/-76.6054|S143|Q328||Q7457261|P729|+1856-00-00T00:00:00Z/9|S143|Q328||Q7457261|P730|+1988-00-00T00:00:00Z/9|S143|Q328||Q7457261|P793|Q24410992|P585|+1949-00-00T00:00:00Z/9|S143|Q328||Q7457261|P2048|40_ftU11573|S143|Q328||Q7457261|P2929|12_nmiU93318|S143|Q328||Q7457261|P18|"HISTORIC_VIEW,_CIRCA_1900_-_Seven_Foot_Knoll_Lighthouse,_Mouth_of_Patapsco_River,_Riviera_Beach,_Anne_Arundel_County,_MD_HAER_MD,2-RIVBE.V,1-37_(Cropped).jpg"|S143|Q328|P2096|en:"Seven_Foot_Knoll_Light_at_its_original_location_(1900)"){kind=link}
The Seven Foot Knoll Light was built in 1855 (according to some sources, 1856) and is the oldest screw-pile lighthouse in Maryland. It was located atop Seven Foot Knoll in the Chesapeake Bay until it was replaced by a modern navigational aid and relocated to Baltimore's Inner Harbor as a museum exhibit.