The falls feature a viewing platform literally underneath the falls on the other side of a natural tunnel carved into the hillside by the rushing waters of an abandoned channel.
As the water falls down, an outcrop of harder stone resists erosion and forms the brink of the falls. The softer limestone below has been scoured by the plummetting water to form a plunge pool.
Eventually, the swirling waters of the plunge pool will undercut the harder stone layer so deeply that chunks of the unsupported ledge will break off. In this way, the falls gradually move upstream.
To log this earth cache, email me the answers to 1 and 2:
Even in winter when the creek's eternal flow seems frozen in time, erosion continues. Water seeps into cracks on warm days, and chips off small chunks of rock when it freezes and expands at night.
1. Estimate the height of the falls.
2. What type of rock forms the harder top outcrop?
3. Post a picture of you or your GPSr at the falls.