The Fuerte de la Concepción () was a Spanish military fortress guarding the port and town of Aguadilla, Puerto Rico, in the 18th and 19th centuries.. In 1986, the fort's single surviving building was listed on the U.S. National Register of Historic Places,. and later on the Puerto Rico Register of Historic Sites and Zones in 2000.
See also National Register of Historic Places listings in Aguadilla, Puerto Rico Fuerte de San José
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External links Blog post about the fort