Complex sentence: Carrie Furnace is a derelict former blast furnace located along the Monongahela River in the Pittsburgh area industrial town of Rankin, Pennsylvania, and it had formed a part of the Homestead Steel Works.
Split into simpler sentences: Carrie Furnace is a derelict former blast furnace located along the Monongahela River in the Pittsburgh area industrial town of Rankin, Pennsylvania. It had formed a part of the Homestead Steel Works.