 Judge Charles Coxe of Philadelphia, executor of the Tench Coxe Estate, granted the company a 20-year lease for the establishment and operation of a colliery on these 1,500 acres (6 km²) of land.In 1854 the company began work on this, the Council Ridge Colliery.By autumn of 1854, the company had constructed a saw mill to provide lumber necessary for the colliery buildings, such as the breaker, stable, and store house.