US 14

U.S. Route 14
Route information
Length:	1,398 mi (2,250 km)
Existed:	1926 – present
Major junctions
West end:	US 16 / US 20 at Yellowstone National Park
	I-90 / US 87 at Sheridan, WY US 83 at Pierre, SD I-29 at Brookings, SD I-35 at Owatonna, MN I-90 at La Crescent, MN US 12 / US 18 / US 151 at Madison, WI I-39 / I-90 at Janesville, WI I-43 at Darien, WI US 12 / US 45 at Des Plaines, IL I-94 at Chicago, IL
East end:	US 41 at Chicago, IL
Location
States:	Wyoming, South Dakota, Minnesota, Wisconsin, Illinois
Highway system
United States Numbered Highway System List Special Divided Replaced

U.S. Route 14 (abbreviated U.S. 14 or US 14), an east–west route, is one of the original United States highways of 1926. It currently has a length of 1,398 miles (2,250 km), but it had a peak length of 1,429 miles (2,300 km). For much of its length, it runs roughly parallel to Interstate 90.

As of 2004, the highway's eastern terminus is in Chicago, Illinois. Its western terminus is the east entrance of Yellowstone National Park in Wyoming, with the western terminus of U.S. Route 16 and the western terminus of the eastern segment of U.S. Route 20.

U.S. 14 begins at the east entrance to Yellowstone National Park, along with U.S. 16 and the eastern segment of U.S. 20. It travels through the Shoshone National Forest to Cody, where U.S. 14A splits off to the north. Both routes traverse the dry Bighorn Basin, followed by a steep ascent up the Big Horn Mountains and through the Bighorn National Forest, where they rejoin at Burgess Junction. The highway descends the eastern slope of the Bighorns between Burgess Junction and Dayton. U.S. 14 briefly follows I-90 south from Ranchester to Sheridan. The highway turns east and then south to again join I-90 near Gillette. It splits off for a short time to Carlile, then rejoins I-90 which it follows to the state line.

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Wikipedia