Decisive in Texas history, was fought here September 18, 1842. Col. Mathew Caldwell and Capt. John C. Hays, commanding a force of Texas volunteers, opposed the Mexican Army under General Adrian Woll that had captured San Antonio, and with the loss of only one man, checked the last Mexican invasion of Texas and thereby prevented the capture of Austin, capital of the Republic of Texas. Erected by the State of Texas 1936