The resources of the U.S.A. The towns marked on the map are the centres of the fourteen leading industrial areas in the United States; and Washington, the capital
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.