Lock and Dam Trinity River

The Trinity River is a 710-mile river, the longest with a watershed entirely within the U.S. state of Texas. It rises in extreme northern Texas, a few miles south of the Red River. The headwaters are separated by the high bluffs on the southern side of the Red River.
  • Country: United States
  • Length: 710 miles (1,140 km)
  • Basin size: 15,589 sq mi (40,380 km²)
Data from: en.wikipedia.org