How did physical geography affect the outcome of the battle of coleto?

The Battle of Coleto Creek  (March 19-20 1836) took place in an open prairie environment with high grass. This gave a tactical advantage to the Texan defenders and aided them to resist Mexican infantry and cavalry attacks. High grass difficulted the vision and a realistic appraisal of the battlefield by Mexican commanders.  Nevertheless, there was little water in the area, so the defenders couldn´t give water to their wounded nor cool  their cannons.  Texans surrendered.

Explanation:

tocharian and anatolian were belaved to become extinct during the ninth century. =)