The Llano River (/ˈlænoʊ/ LAN-oh) is a tributary of the Colorado River, about 105 miles (169 km) long, in Texas in the United States. It drains part of the Edwards Plateau in Texas Hill Country northwest of Austin. This river is one of the few popular fly fishing destinations in the state of Texas, and contains Guadalupe bass, the state fish of Texas. The Llano also contains largemouth bass, alligator gar, and various sunfish.