In 1963 the US Navy took control of the southern end of Fort Miles including Batteries Smith and Herring to establish a SOSUS listening facility.
Fort du Pont at Delaware City and Fort Miles at Cape Henlopen became major military installations protecting the shipping routes into the Delaware River.
Fort Worth, Texas | Miles Davis | Fort Worth | Fort Wayne, Indiana | Fort Sill | Fort Bliss | Fort Leavenworth | Fort Bragg | Fort Benning | Fort William | Fort Lauderdale, Florida | fort | Fort Smith, Arkansas | Fort Bragg (North Carolina) | Red Fort | Fort Sumter | Fort Lee, New Jersey | Fort Knox | Fort Wayne | Fort Monroe | Fort Drum | Fort Stockton, Texas | Fort Smith | Fort Sam Houston | Fort Myers, Florida | Fort Worth Star-Telegram | Fort Vancouver | Fort McMurray | Fort Hood | Fort Stockton |