Geography

Human/Environmental

In the 1800s, iron was produced right on the land owned by an entrepreneur. Iron furnaces usually had nearby sources for all of the productive resources needed to make the iron: workers, a furnace, limestone, timber, coal, and iron ore. Once the workers had used up all of available natural resources, a furnace would close and move to new area. Eventually Ohio's deposits of iron began to disappear and all of the iron furnaces closed down.