oldest masonry fort in the continental United States

GPTKB entity

Properties (5)
Predicate Object
gptkbp:instanceOf fort
gptkbp:built 17th century
https://www.w3.org/2000/01/rdf-schema#label oldest masonry fort in the continental United States
gptkbp:location gptkb:Florida
gptkbp:name gptkb:Castillo_de_San_Marcos