Fort Mifflin

Fort Mifflin (also historically called Fort Island Battery and Mud Island Fort) is an island fortification sited on Mud Island in the Delaware River below Philadelphia, Pennsylvania, noted in sources as being commissioned in 1771. The supplied materials identify the site by location and commissioning date and place it within the Revolutionary-era military milieu around Philadelphia; however, the provided excerpts do not supply detailed narrative of specific events, battles, or changes of ownership. The supplied research notes contain no descriptions of paranormal phenomena, hauntings, named spirits, eyewitness reports, or folkloric traditions tied to Fort Mifflin. Because the sources consulted (Wikipedia, Wikidata, and the supplied bibliographic archive records) do not report supernatural claims, this entry records no reported paranormal events. Cultural and historical significance is implied by the commissioning date and its role as a colonial/Revolutionary-era fortification near Philadelphia, but the provided sources do not give extended analysis or primary documentation of those roles.