Site of Camp Hudson, established by the United States Army, June 7, 1857, as a means of protecting the road from San Antonio to El Paso against hostile Indians. Named in honor of 2nd Lieutenant Walter W. Hudson who died April 19, 1850, of wounds received in action with Indians in Texas. Evacuated by Federal troops March 17, 1861 but reoccupied after the Civil War. Abandoned in April 1868. Erected by the State of Texas 1936