Lake Whitney is a flood control reservoir on the main stem of the Brazos River in Texas. It is located on River Mile Marker 442 and controls drainage for 17,656 square miles (45,730 km²) of Texas and parts of New Mexico. The reservoir encompasses a surface area of more than 23,500 acres and 225 miles (362 km) of shoreline. The area consists of rolling, tallgrass prairies; cedar trees; hardwood timber; and 100 ft (30 m) bluffs and rock points.