Category:Illinois Forts

 (F) 38.0844444, -90.1577778 Fort de Chartres (1720-1772) (F) 37.9663889, -89.9072222 Fort Kaskaskia (1733-1764, 1772-1807) (F) 37.143124, -88.711874 Fort Massac (1757-1764, 1794-1817, 1850-1864) (F) 36.986441, -89.145904 Fort Defiance (3) (1861-1865) (F) 41.51629, -90.565581, Fort Armstrong (3) (1816-1835) (A) 41.516944, -90.541944, Rock Island Arsenal (1862-Present) (M) 41.5187907, -90.5416115, Rock Island Military Reservation (1809-Present) (F) 40.68756, -89.58999, Fort Clark (4) (1813-1817, 1832)

(F) 39.00728333, -87.62395 Fort Foot (1813-181?) (F) 38.99961667, -87.60291667 Fort La Motte (1811-1814)

(F) 42.216778, -87.816035 Fort Sheridan (2) (1887-1993) (F) 41.888333, -87.624722 Fort Dearborn (3) (1803-1836)