U.S. Route 101
U.S. Route 101, or U.S. Highway 101 (US 101) is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Road) where its route along the southern and central California coast approximates the old trail which linked the Spanish missions, pueblos, and presidios. It merges at some points with California State Route 1 (SR 1).
Illinois Route 101
Illinois Route 101 is a east–west state road that runs from to the intersection of Illinois Route 61 in Augusta east to U.S. Highway 67 one mile (1.6 km) east of Littleton. The highway was officially established in 1924 along its current alignment. Route 101 is maintained by the Illinois Department of Transportation.