Interstate 180 (Wyoming) / Interstate 25 (Business) / US Route 85 / US Route 87 (Business) (Cheyenne, Wyoming)

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Interstate 180 is not a standard interstate in that there are traffic lights along the way. It runs just over one mile from Lincolnway/16th Street to I-80. Business Loop I-25 South and Business US Route 87 South are signed together for their entire routes. They leave I-25/US 87 at exit 12 and split into one-way streets. Southbound follows Central Avenue. At 16th Street, they join I-180 and continue south of I-80 (where I-180 ends). They turn west at College Drive (WY 212) and end at I-25/US 87 exit 7 (where WY 212 also ends). US Highway 85 runs from Canada to Mexico. It starts in Fortuna, ND southward to Deadwood, SD (where US 385 begins). It continues through Cheyenne, WY and is unsigned in most of Colorado and all of New Mexico. It ends at the US-Mexico border in El Paso, TX.