The Schuylkill River ( SKOOL-kil, locally SKOO-kəl) is an important river running northwest to southeast in eastern Pennsylvania, which was improved by navigations into the Schuylkill Canal. Several of its tributaries drain major parts of the center-southern and easternmost Coal Regions in the state.Originating from waters in the Anthracite Coal Region, millions of tons of coal enabling the iron and steel based industries of America's largest city of the day used the waterway to supply some of the growing American energy needs. It flows for 135 miles (217 km) to Philadelphia, where it joins the Delaware River as one of ... Source: Wikipedia