Interstate 5, often abbreviated as I-5, is a major north-south highway in the western United States. It runs from the Mexican border in San Diego, California to the Canadian border in Blaine, Washington, covering approximately 1,381 miles. This interstate is a vital transportation route, connecting major cities such as Los Angeles, San Francisco, and Portland. I-5 is known for its diverse landscapes, including coastal areas, urban centers, and agricultural regions. It serves as a crucial corridor for commerce and travel, facilitating the movement of goods and people across the West Coast. The highway is also part of the larger National Highway System.