Statements (25)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:lighthouse | 
| gptkbp:addedToNationalRegisterOfHistoricPlaces | 1988 | 
| gptkbp:automated | 1963 | 
| gptkbp:basisFor | gptkb:granite | 
| gptkbp:built | gptkb:brick | 
| gptkbp:builtYear | 1821 | 
| gptkbp:characteristic | Flashing white every 6 seconds | 
| gptkbp:country | gptkb:United_States | 
| gptkbp:focusArea | 250 mm | 
| gptkbp:height | 52 feet 20 feet | 
| gptkbp:locatedIn | gptkb:Maine | 
| gptkbp:locatedOn | gptkb:Pond_Island | 
| gptkbp:location | gptkb:Kennebec_River | 
| gptkbp:managedBy | gptkb:U.S._Coast_Guard | 
| gptkbp:marking | white tower, black lantern | 
| gptkbp:nearestCity | gptkb:Phippsburg,_Maine | 
| gptkbp:NRHPReferenceNumber | 87002277 | 
| gptkbp:originalLens | Fifth order Fresnel lens | 
| gptkbp:range | 9 nautical miles | 
| gptkbp:shape | cylindrical tower | 
| gptkbp:yearLit | 1855 | 
| gptkbp:bfsParent | gptkb:Pond_Island_Ledge | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Pond Island Ledge Light |