First Lexington blockhouse and stockade built, April 1779, near SW corner of Main and Mill streets, close to "the public spring." After many Indian uprisings in Kentucky, Colonel John Todd in 1781 led in building new artillery-proof fort: 94 ft. sq., walls of rammed earth seven ft. thick, enclosed in timber and surrounded by a wide ditch. Presented by Lexington-Fayette Co. Historic Commission.