sentences:  The route was extended south to its current terminus in 1937 and was completely paved by 1940.PA 841 begins at the Maryland border in the community of Lewisville in Elk Township, Chester County, where the road continues south into that state as MD 213.From the state line, the route heads north on two-lane undivided Chesterville Road, intersecting the southern terminus of PA 472 a short distance past the state line.