During the era of horse drawn Conestoga wagons, the road was widened.
From Philadelphia, the road follows modern-day Montgomery Avenue through Wynnewood, Ardmore, and Haverford.
From Elverson, the road continues to Harrisburg and the Allegheny Valley according to sources.
The path was used by the Susquehannock and other Native American tribes to trade with people in Philadelphia in the 1700s.
The eastern section of the road closer to Philadelphia was improved by settlers of the Welsh Tract.