Interstate 680, often abbreviated as I-680, is a major highway in the United States that runs through the states of California and Nevada. It spans approximately 170 miles, connecting the cities of San Jose and Sparks. The highway serves as a vital route for commuters and travelers, facilitating access to various urban and suburban areas. I-680 is known for its scenic views, particularly as it traverses the San Francisco Bay Area and the Sierra Nevada foothills. The highway features several interchanges with other major routes, including Interstate 80 and Interstate 5, enhancing connectivity for regional traffic.