Hummelstown to Marietta

This route was selected for best combination of being direct and lesser traffic. The section on PA 39 had much traffic. However, most of this portion had very wide and well-maintained shoulders. Grandview Road had some traffic and one downhill ends at a stop sign.
The hills heading south on Waltonville Road are some of the worst in the area. Traffic south was light from this point into Elizabethtown. Snavely Road is paved but not to the standard of most township roads. 743 south of Elizabethtown did not have much traffic southbound.
Adding some distance to avoid the Waltonville Road hills may be worthwhile