Historic Highway 20


(617) 733-5796


241 Route 20 - Chester, MA 01011


https://www.historicroute20.org/iowa

Rediscover Iowa's Historic Highway 20 Auto Trail. It's time to be 20 again as you adventure 333 miles along the original 1926 alignments of Hold Highway 20 between the Mississippi and Missouri Rivers!


Follow the Brown and White Historic Signs or visit the site at the link above to download a guide and map to your device or to print out.


A full map and travel guide coming spring 2022.

Select ▼ For Answer

  • 1. How long is US Route 20?

    A: The official length is 3,365 miles. The Eastern Terminus is in Boston, MA, and the Western Terminus is in Newport, OR. 

  • 2. Is Route 20 America's Longest Highway?

    A: Yes, in reference to the active US Highway syetem as defined by the Federal Highway Administration. In the past, other highways were longer, including Lincoln Highway, US Route 6, Route 66, and Interstate 90.

  • 3. What is the length of Route 20 within Iowa?

    A: 333 miles

  • 4. Where can I get Iowa Historic Route 20 merchandise?

    A: At Savvy Salvage in Dyersville, Iowa.