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Route History for US 20

The history of US 20 is presented for each state along the route.

Choose a State:

• Massachusetts
• New York
• Pennsylvania
• Ohio
• Indiana
• Illinois
• Iowa
• Nebraska
• Wyoming
• Montana
• Idaho
• Oregon

Links to external websites with information about US 20:

• Some historical information about US 20 in the West and some current pictures of US 20 in Wyoming are available at AARoads.com.
• Route 20 - Coast to Coast has descriptions US 20 from the 1930s.
• An historical overview of US 20 can be found on the U.S. Highways: From US 1 to (US830) website.

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