Bad Branch Falls State Nature Preserve is a forested gorge covering 2,639 acres near Whitesburg, KY in Letcher County, Kentucky. The deep and narrow gorge, adjacent to the Jefferson National Forest is carved into the face of Pine Mountain. Sandstone boulders and cliffs along with riglines and knobs provide views into the Appalachia area. The terraiā¦Bad Branch Falls State Nature Preserve is a forested gorge covering 2,639 acres near Whitesburg, KY in Letcher County, Kentucky. The deep and narrow gorge, adjacent to the Jefferson National Forest is carved into the face of Pine Mountain. Sandstone boulders and cliffs along with riglines and knobs provide views into the Appalachia area. The terrain is landscaped with streams, rivers, and a 60-foot waterfall. With a variety of habitat types, this nature preserve is home to many unique and unknown species of flora and fauna.