The Chisos Basin in Big Bend National Park, Texas, is nestled in the heart of the Chisos Mountains at about 5,400′ in elevation. It is surrounded by cliffs on all sides save for the gap known as The Window. It is a fitting name as it is on the western edge of the Basin and offers views of distant desert ranges and often frames beautiful sunsets. The Window is also the outlet for water draining out of the basin;┬ásuch outlets are locally referred to as a pour-offs.