The falls are approximately 7.6 meters (25 feet) high, and the water drops 4.5 meters (15 feet) into a small pool below the rocky overhang of the falls. Waterfalls such as Grotto Falls are prevalent in the Smokies due to the high elevation of the land and plentiful rainfall in the area. The average rainfall in the entire elevated region amounts to approximately 216 centimeters (85 inches) per year. Specifically, the peaks of the Smoky Mountains, including Clingmans Dome, which is the highest point in the park, record over 2.4 meters (8 feet) of rain annually during wetter years. All of this water flows down the steep land gradient, and this downward flow results in the many large and small waterfalls in the mountainous region. There are at least ten very popular waterfalls in the park, including Grotto Falls, that are frequented by thousands of tourists annually; however, every river and stream has its own set of smaller waterfalls.
Photo courtesy of hickory hardscrabble via Flickr Creative Commons.
For more information on the geology of The Great Smoky Mountains, please see:https://www.facebook.com/