The grass fire near Parker Ranch Road is now contained.
Firefighters are now checking for hot spots and will stay throughout the night, just in case the fire rekindles.
Firefighters have been fighting the blaze all afternoon.
The Texas Forestry Service was called in to go in on foot and with air support because the large amount of brush made it hard for responders to get to the blaze.
Two helicopters were in the air, pouring water on the ground, to help get the fire under control.