 
                        
                            
                                AI-created image
                            
                        
                    Statements (23)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:lighthouse | 
| gptkbp:adjacentTo | gptkb:Alcatraz_Federal_Penitentiary | 
| gptkbp:automated | 1963 | 
| gptkbp:builtYear | 1854 | 
| gptkbp:country | gptkb:United_States | 
| gptkbp:height | 25 meters 28 meters | 
| gptkbp:historicalSignificance | first lighthouse built on the U.S. West Coast | 
| gptkbp:lightCharacteristic | Fl W 5s | 
| gptkbp:listedOn | gptkb:National_Register_of_Historic_Places | 
| gptkbp:locatedIn | gptkb:San_Francisco_Bay | 
| gptkbp:location | gptkb:Alcatraz_Island | 
| gptkbp:managedBy | gptkb:United_States_Coast_Guard | 
| gptkbp:NRHPReferenceNumber | 76000209 | 
| gptkbp:openToPublic | no | 
| gptkbp:restored | 1909 | 
| gptkbp:shape | octagonal tower | 
| gptkbp:state | gptkb:California | 
| gptkbp:status | active | 
| gptkbp:structureType | concrete tower | 
| gptkbp:bfsParent | gptkb:Alcatraz_Island | 
| gptkbp:bfsLayer | 5 | 
| https://www.w3.org/2000/01/rdf-schema#label | Alcatraz Island Lighthouse |