158km is the halfway point between Columbia Sc and Bennettsville sc.
The halfway point between Gulfport, Mississippi and Tulsa, Oklahoma is Varner, Arkansas. There is approximately 564 miles between Tulsa and Gulfport.
The halfway point between Tulsa, OK and Fort Campbell, KY falls in or around Mountain View, MO.
Des Monien Iowa
Edwardsville, IL
Galena, OH
Somerset, Pennsylvania is about halfway between Cleveland Ohio and Columbia Maryland
Tulsa, Oklahoma is close to the halfway point and is certainly worthy of a visit.
The town of Odd, WV is the halfway point.
Terre Haute, Indiana
Urbana, Illinois.
The halfway point between Tulsa, Oklahoma, and Vicksburg, Mississippi, is Conway, Arkansas, if you're going via Fort Smith, Little Rock, and Pine Bluff.