U.S. Route 4 is a major east-west highway in the United States, stretching approximately 200 miles. It runs from New York in the west to New Hampshire in the east, connecting several towns and cities along the way. The route primarily serves as a vital link for local traffic and commerce. Established in 1926, U.S. Route 4 has undergone various changes and improvements over the years. It passes through scenic areas, including parts of the Green Mountains and White Mountains, making it a popular route for travelers seeking beautiful landscapes and outdoor activities.