The keystone design featuring crossed arrows holds deep significance in Native American history, particularly in Lancaster, Pennsylvania. The Keystone State, as Pennsylvania is often referred to, symbolizes the central and pivotal role the state has played in the history of the United States. The crossed arrows in the design, against the backdrop of the keystone shape, pay tribute to Lancaster's indigenous communities, primarily the Susquehannock, and symbolize unity, cooperation, and protection among these Native American tribes. The keystone itself signifies the foundational and essential nature of the indigenous culture in the region, underlining their historical unity, resilience, and spiritual connection. This emblem serves as a powerful reminder of Lancaster's shared history and the enduring strength of its Native American heritage in the face of challenges and change.