|
gptkbp:instanceOf
|
lighthouse
|
|
gptkbp:addedToNationalRegisterOfHistoricPlaces
|
July 19, 1971
|
|
gptkbp:associatedWith
|
gptkb:Lake_Huron
gptkb:Great_Lakes
gptkb:St._Clair_River
|
|
gptkbp:automated
|
1933
|
|
gptkbp:builtYear
|
1825
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:county
|
gptkb:St._Clair_County
|
|
gptkbp:focusArea
|
Third order Fresnel lens
|
|
gptkbp:height
|
86 feet
82 feet
|
|
gptkbp:historicalName
|
aid to navigation
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Fort Gratiot Lighthouse
|
|
gptkbp:latitude
|
43.0067
|
|
gptkbp:lightCharacteristic
|
Flashing white every 6 seconds
|
|
gptkbp:locatedIn
|
entrance to the St. Clair River from Lake Huron
|
|
gptkbp:location
|
gptkb:Port_Huron,_Michigan
|
|
gptkbp:longitude
|
-82.4192
|
|
gptkbp:managedBy
|
gptkb:St._Clair_County_Parks_and_Recreation
|
|
gptkbp:marking
|
white tower
|
|
gptkbp:material
|
gptkb:brick
|
|
gptkbp:namedAfter
|
gptkb:Fort_Gratiot
|
|
gptkbp:NRHPReferenceNumber
|
71000397
|
|
gptkbp:openToPublic
|
yes
|
|
gptkbp:operatedBy
|
gptkb:United_States_Coast_Guard
|
|
gptkbp:restored
|
1829
|
|
gptkbp:shape
|
conical
|
|
gptkbp:significance
|
oldest surviving lighthouse in Michigan
|
|
gptkbp:state
|
gptkb:Michigan
|
|
gptkbp:touredWith
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Port_Huron
gptkb:Port_Huron,_Michigan,_United_States
|
|
gptkbp:bfsLayer
|
5
|