Interstate 25 in Wyoming

Interstate 25
Dwight D. Eisenhower Highway (from I-70 in Denver to I-80 in Cheyenne)
Route information
Maintained by WYDOT
Length:	300.53 mi (483.66 km)
Major junctions
South end:	I-25 / US 87 at the Colorado state line near Cheyenne
	I-80 in Cheyenne US 30 in Cheyenne US 85 near Cheyenne US 20 / US 26 in Casper US 16 in Buffalo
North end:	I-90 / US 87 near Buffalo
Location
Counties:	Laramie, Platte, Converse, Natrona, Johnson
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State highways in Wyoming Interstate U.S. State ← WYO 24 US 26 →

State highways in Wyoming

Interstate 25 (I-25) is a part of the Interstate Highway System that runs from Las Cruces, New Mexico, to Buffalo, Wyoming. In Wyoming, the Interstate Highway runs 300.530 miles (483.656 km) from the Colorado state line near Cheyenne north to its national terminus at I-90 near Buffalo. I-25 connects Wyoming's largest city and capital, Cheyenne, with its second largest city, Casper, and the smaller communities of Wheatland, Douglas, and Buffalo. The highway also connects those cities with Denver and Billings via I-90. I-25 runs concurrently with U.S. Route 87 (US 87) for almost its entire course in Wyoming. The highway also has extensive concurrencies with US 20 and US 26 along its east–west segment through the North Platte River valley. The Interstate has business loops through Cheyenne, Chugwater, Wheatland, Douglas, Glenrock, Casper, and Buffalo.

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