Interstate 5, commonly known as I-5, is a major north-south highway in the United States. It runs from the Mexican border in California to the Canadian border in Washington, covering approximately 1,381 miles. I-5 serves as a vital transportation route for both commercial and personal travel, connecting major cities such as Los Angeles, San Francisco, Portland, and Seattle. The highway is an essential part of the National Interstate Highway System and facilitates trade and tourism along the West Coast. I-5 features various landscapes, including urban areas, agricultural regions, and scenic coastal views, making it a popular route for travelers exploring the western states.