A westbound Amtrak Keystone led by AMTK No. 622 races through Gap, PA, passing the Gap Clock Tower, a well known landmark in Lancaster County that was erected in 1892 and restored in 1953. The clock’s face overlooks "The Gap", William Penn’s entrance into Conestoga, now Lancaster County.
The gap for which the community is named is at an elevation of 580 feet above sea level, between Mine Ridge to the west and Gap Hill to the east, both ridges rising to about 750 feet above sea level. The area around Gap had a copper mine and what at the time were the only nickel mines in the United States.