Interstate 15
How long is I-15?
I-15 is the 11th longest interstate at approximately 1,433 miles in length.
Like its close neighbor I-5, it stretches across the United States from north to south. It ends at the Canadian border and stops just shy of the Mexican border.
Where does I-15 end?
I-15's southern end is about 10 miles north of the Mexican border, where it junctures with I-5 in San Diego. Its northern terminus is in the remote and unincorporated town of Sweet Grass, Montana, on the Canadian border.
Map of I-15
Attractions near I-15:
I-15 is a wonderful road to see beautiful open landscapes, gorgeous mountain views and vast canyons. There are also a great deal of things to see and do while traveling this highway, some of which are listed below:
- Cathedral of St. Helena
Helena, MT - Yellowstone Park
Idaho Falls, ID - Museum of Fine Arts
Salt Lake City, UT - Park City
Salt Lake City, UT - Liberty Park & Tracy Aviary
Salt Lake City, UT - Hoover Dam
Las Vegas, NV - Las Vegas Boulevard (Las Vegas Strip)
Las Vegas, NV - The Mob Museum
Las Vegas, NV - Disneyland
Anaheim, CA - Beaches of Southern California
Del Mar, CA - San Diego Zoo
San Diego, CA - La Jolla Beach and Cove
La Jolla, CA
States I-15 travels through
I-15 goes through 6 different states. It barely clips portions of Nevada and Arizona, and travels the entire states of Montana and Utah. They are listed below from north to south:
- Montana
- Idaho
- Utah
- Arizona
- Nevada
- California
I-15 Major Cities
I-15 travels on the western edge of the Rocky Mountain Chain and into the desert areas of the southwest. On its journey, it passes through a number of exciting places. Below are five of the largest cities it travels to.
- Helena, Montana
- Salt Lake City, Utah
- Las Vegas, Nevada
- Los Angeles, California
- San Diego, California
Major Connections & Interchanges
- Butte, MT
I-90 W to Spokane, WA
I-90 E to Bismarck, ND - Salt Lake City, ID
I-80 W to Sacramento, CA
I-80 E to Cheyenne, WY - Cove Fort, UT
I-70 E to Denver, CO - Barstow, CA
I-40 E to Albequerque, NM - San Bernadino, CA
I-10 W to Los Angeles, LA
I-10 E to Phoenix, AZ - San Diego, CA
I-8 E to Tuscon, AZ
I-8 W to Downtown San Diego, CA
I-5 N to Los Angeles, CA
I-5 S to Mexico