A towering wall of twisted basalt columns and a 100-foot tall waterfall are the highlights of Devil’s Postpile National Monument in the heart of the Sierra. The park also serves as an excellent jumping-off point for several area trails, including the John Muir Trail. 

<http://www.backpacker.com/destinations-stories/the-16-best-non-park-national-parks/#bp=0/img15>