Bilger's rocks is a geological wonder, Surrounded by an enchanting forest of fauna and flora.  It is open to the public on a year around basis and maintained by a non-profit group of volunteers. It is a unique and permanent attraction that affords a quality and inexpensive adventure in the great outdoors.  If you and others are about natural discovery and mystery, self-designed to meet your exploration cares and needs across a variety of disciplines, geology, deep-time, earth science, history, wildlife, nature walks, environmental inquiry research, and a mosaic of recreation choices, then this might meet your, family, or group needs for the unusual.  

This is a great place to visit.  Whether you just want to take a peaceful walk in nature or you are deeply interested in the geological side of things, Bilger's Rocks await you.  This is one of natures true wonders - it has been over 300 million years in the making.
   
The beautiful walking paths intertwine among huge moss covered sandstone blocks that average 20' to 25' thick.  The house size blocks are slowly creeping their way down off the mountain.  This will take hundreds of thousands of years.  This is a classic example of what's been called a "rock city."  
   
The rocks are part of the Homewood Sandstone Member (Curwensville Formation, Pottsville Group, Pennsylvania age).  The "city" was formed by FROST WEDGING.  Water gets into the cracks and as it freezes it cracks and breaks sections of the sandstone away from the main body.  As water continues to enter the cracks it slowly erodes the soft sandy soil out from under the broken section of rock.  Gravity then slowly moves the large slabs of rock down the hillside.  The cracks vary in width from several inches to as much as 25" in width.  Several cracks are up to 50' long.  This is a work in progress.