peranales river that sometimes flows underground near lbj ranch in teaas under crazy sunset sky with fall foliage and tourists

adventure america autumn background beautiful colors country crazy daytrip environment erosion fall falls flowing flows foliage hiking hill landscape lbj mountain natural nature outdoor park pedernales peranales pool ranch river rock scenery scenic sky sometimes state stone stream stunning summer sundown sunset teaas texas that tourism tourists trail travel tree trees trekking twilight underground valley view water