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.
Navigable year round, the Lower Cumberland winds 192 miles from Nashville to Smithland at the Ohio River. It flows through ridges. and valleys and is an absolutely beautiful cruise. All total, the Cumberland River is 688 miles long, and starts in Harlan County in far. southeastern Kentucky between Pine and Cumberland mountains. It flows through southern Kentucky, and crosses into northern. Tennessee. The bulk of the traffic is to and from Nashville to the mouth.