US Highways are a venerable Road network, stitching together the diverse landscapes of America. These numbered routes, such as the iconic Route 66 and the scenic US 1, predating the modern Interstate system, guide journeys across states and time.
Numbering
The US Highway system employs a logical numbering convention. Primary east-west routes are assigned even numbers, generally increasing from north to south across the country. Primary north-south routes are assigned odd numbers, generally increasing from east to west.
