Interstate 25 - Definition and Overview

Interstate 25 is an interstate highway in the western United States. Like other "interstates," it is commonly referred to as I-25. Its odd number indicates that it is primariliy a north-south highway. It goes from Interstate 10 at Las Cruces, New Mexico to Interstate 90 in Buffalo, Wyoming.

Length

Major cities along the route

• Las Cruces, New Mexico
• Albuquerque, New Mexico
• Santa Fe, New Mexico
• Colorado Springs, Colorado
• Denver, Colorado
• Fort Collins, Colorado
• Cheyenne, Wyoming
• Casper, Wyoming

Intersections with other Interstates

• Interstate 10 in Las Cruces, New Mexico
• Interstate 40 in Albuquerque, New Mexico
• Interstate 70 in Denver, Colorado
• The western Interstate 76 in Denver, Colorado
• Interstate 80 in Cheyenne, Wyoming
• Interstate 90 in Buffalo, Wyoming

Spur routes

• Denver, Colorado - I-225

Notes

It is the main north-south highway through Colorado, passing through Cheyenne, Wyoming, near Ft. Collins, Colorado, through Denver, Colorado, Castle Rock, Colorado, Colorado Springs, Colorado, Pueblo, Colorado and over Raton Pass into New Mexico. The I-25 corridor in Colorado is heavily urbanized, passing just east of the Front Range of the Rocky Mountains.

Reference

• 2005 Rand McNally "The Road Atlas 2005" - newest feature- interstate mileage by state