Communication of information between neurons is accomplished by movement of chemicals across a small gap called the synapse. Chemicals, called neurotransmitters, are released from one neuron at the presynaptic nerve terminal.
Follow Trail 12 until it runs back into trail 1 and familiar sights and then you are only about 200 yards from the great Cumberland Falls. To the best of my guessing ability I would say this loop was about 8.5 miles long which took us about 3 hours and 45 minutes.
CUMBERLAND FALLS, estimated to be about 250 million years old, originated miles downstream near Burnside from its present location flowing over resistant Pine Creek and Rockcastle Conglomerate Sandstones. Every waterfall is destined to disappear.