On Indian-infested frontier 125 miles beyond Fort Belknap and outer settlements. Northernmost business in Confederate Texas. Established at great risk, to obtain salt, scarce during Civil War and vitally needed to cure meat, season food, cure hides for leather, feed work horses, army draft mules and cavalry horses. Texas Legislature appropriated funds for the explorations on the Brazos by a civil engineer. Double Mountain spring water proved to be 98% salt, a nearby lake 45%. Reduction of brine was under control of Texas Military Board. Troops guarded the work. (1965)