 The portion of present-day PA 10 along Limestone Road was originally a Native American trail.When routes were first legislated in Pennsylvania in 1911, today's PA 10 was designated as Legislative Route 274, running between Legislative Route 131 in Oxford and Legislative Route 148 in Reading.By 1926, the entire length of Legislative Route 274 was paved except between Compass and south of Honey Brook and Honey Brook and Morgantown.