U.S. Route 34

U.S. Route 34 marker
U.S. Route 34
Map
US 34 highlighted in red
Route information
Length1,122 mi[citation needed] (1,806 km)
Existed1926[citation needed]–present
Major junctions
West end US 40 at Granby, CO
Major intersections
East end IL 43 / Historic US 66 at Berwyn, IL
Location
CountryUnited States
StatesColorado, Nebraska, Iowa, Illinois
Highway system
US 33 US 35

U.S. Route 34 (US 34) is an east–west United States highway that runs for 1,122 miles (1,806 km) from north-central Colorado to the western suburbs of Chicago. Through Rocky Mountain National Park it is known as the Trail Ridge Road where it reaches an elevation of 12,183 feet (3,713 m), making it one of the highest paved through highways in the United States. The highway's western terminus is Granby, Colorado at US 40. Its eastern terminus is in Berwyn, Illinois at Illinois Route 43 and Historic US 66.

U.S. Route 34 becomes a toll road for a short distance in Colorado, where it passes through Rocky Mountain National Park.