The Ohio River flows northwest from Pittsburgh through steel town after steel town. When we moved into the area in 1988, the mills were dead or dying. Some, like the J&L works in Aliquippa, were leveled. Ten miles of shoreline left as fractured pavement and weeds. In Midland, where some specialty steel continued in production, the shuttered large mill towered over the grimy town, a black skeletal cathedral to progress long passed.