McKinney Roughs is an 1,100 acre nature park with characteristics of four ecosystems. Post Oak Savannah, Blackland Prairie, East Texas Piney Woods, and a riparian zone converge to create an unusual blend of natural resources. Located just 13 miles east of Austin-Bergstrom International Airport, McKinney Roughs is home to hundreds of plant and animal species living within the rolling box canyons, wildflower meadows and lazy river bends of the Texas Colorado River.