sentences:  From this intersection, the route heads east on two-lane undivided Upper Strasburg Road past homes before heading into open farmland with a few residences, forming the northern boundary of the Letterkenny Army Depot.In the community of Pleasant Hall, PA 533 crosses PA 997.Past this intersection, the route becomes Orrstown Road and heads away from the Letterkenny Army Depot, continuing through more agricultural areas with occasional homes.