U.S. Route 20
U.S. Highway 20 (US 20) is an east–west United States highway that stretches from the Pacific Northwest all the way to New England. The "0" in its route number indicates that US 20 is a coast-to-coast route. Spanning , it is the longest road in the United States, and particularly from Newport, Oregon to Boston, Massachusetts, the route is roughly parallel to that of the newer Interstate 90 (I-90), which is in turn the longest Interstate Highway in the U.S. There is a discontinuity in the official designation of US 20 through Yellowstone National Park, with unnumbered roads used to traverse the park.
U.S. Route 206
U.S. Route 206 (US 206) is a north–south United States highway in New Jersey and Pennsylvania, United States. Only about a half a mile (800 m) of its length is in Pennsylvania; the Milford-Montague Toll Bridge carries it over the Delaware River into New Jersey, where it is the remainder of the route. The highway's northern terminus is near Milford, Pennsylvania at an intersection with US 209; some sources and signs show an overlap with US 209 to end at its parent route US 6. Its southern terminus is in Hammonton, New Jersey at an intersection with Route 54 and US 30. For much of its length, US 206 is a rural two-lane undivided road that passes through the Pine Barrens, agricultural areas, and the Appalachian Mountains of northwestern New Jersey, with some urban and suburban areas. The route connects several cities and towns, including Bordentown, Trenton, Princeton, Somerville, Netcong, and Newton. The road is known as the Disabled American Veterans Highway for much of its length.