Greensboro, NC
Mining City, Kentucky is halfway between St Louis & Gatlinburg
It depends on which route you take.
probably Tennessee or north Carolina
The halfway point between Hermitage, Tennessee, and Cherryville, North Carolina, is just east of Knoxville on I-40.
Memphis TN
washington, dc
Midland is the halfway point between Lexington South Carolina and Bennettsville.
The halfway point between Greenbrier, AR and Gatlinburg, TN is Brownsport, TN.
The halfway point between Evensville Tennesee and Knoxville Tennesee is Dogwood Shores Tennessee.
The halfway point between Memphis, Tennessee and Louisville, Kentucky is Pegram, Tennessee.
If you take the southern route, I recommend Jackson, Mississippi as your halfway point. If you take the northern route, I recommend Memphis, Tennessee as your halfway point.
Nashville, Tennessee