Section of Interstate Highway in Wyoming, United States
This article is about the section of Interstate 25 in Wyoming. For the entire route, see Interstate 25.
Interstate 25
I-25 highlighted in red
Route information
Maintained by WYDOT
Length
300.530 mi[1] (483.656 km)
Existed
1964–present
NHS
Entire route
Major junctions
South end
I-25 / US 87 at the Colorado state line near Cheyenne
Major intersections
I-80 in Cheyenne
US 30 in Cheyenne
US 85 near Cheyenne
US 18 / US 20 in Orin
US 20 / US 26 in Casper
US 16 in Buffalo
North end
I-90 / US 87 near Buffalo
Location
Country
United States
State
Wyoming
Counties
Laramie, Platte, Converse, Natrona, Johnson
Highway system
Interstate Highway System
Main
Auxiliary
Suffixed
Business
Future
Wyoming State Highway System
Interstate
US
State
← WYO 24
→ US 26
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.
^Cite error: The named reference WYDOT Vehicle Miles Book was invoked but never defined (see the help page).
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Global Information
I-25 / US 87 at the Colorado state line near Cheyenne
