  Interstate 25 | ||||
|---|---|---|---|---|
 I-25 and US 87 highlighted in red | ||||
| Route information | ||||
| Length | 298.87 mi[1] (480.98 km) | |||
| Existed | 1958–present | |||
| Major junctions | ||||
| South end |    I-25 / US 85 / US 87 near Trinidad | |||
| North end | I-25 / US 87 near Wellington | |||
| Location | ||||
| Country | United States | |||
| State | Colorado | |||
| Counties | Las Animas, Huerfano, Pueblo, El Paso, Douglas, Arapahoe, Denver, Adams, Broomfield, Weld, Larimer | |||
| Highway system | ||||
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In the US state of Colorado, Interstate 25 (I-25) follows the north–south corridor through Colorado Springs and Denver. The highway enters the state from the north near Carr and exits the state near Starkville. The highway also runs through the cities of Fort Collins, Broomfield, Loveland, and Pueblo. The route is concurrent with U.S. Route 87 (US 87), which is unsigned, through the entire length of the state. I-25 replaced US 87 and most of US 85 for through traffic.
Historical nicknames for this route have included the Valley Highway (through Denver), Monument Valley Highway (through Colorado Springs), and the Pueblo Freeway (through Pueblo). Within El Paso County, the route has been dedicated as the Ronald Reagan Highway.[2][3] In Pueblo County, the route is called John F. Kennedy Memorial Highway.
I-25 is also considered to be part of the unofficial Pan-American Highway.[4]
- ^ Cite error: The named reference
CDOTwas invoked but never defined (see the help page). - ^ Ronald Reagan Presidential Foundation & Library Archived July 25, 2008, at the Wayback Machine
- ^ "Interstate 25". Dot.state.co.us. Retrieved November 27, 2011.
- ^ Sierra County Economic Development Organization. "Transportation and Highways". Archived from the original on September 7, 2007. Retrieved April 19, 2022.