Iowa Primary Road No. 20

Primary Road No. 20 (No. 20) was the designation of a state highway in Iowa that ran from the Missouri state line at Keokuk to the Minnesota state line near Cresco. No. 20 was in existence for six years—from 1920 to 1926. Today, the route is related to the following highways:

Primary Road No. 20
Route information
Existed1920–1926
Highway system
US 20 Iowa 21
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