highway 20), and Ludlow, as well as coming to the Geographic Center of the United States. North Dakota US 85 enters North Dakota in the southwest part of the state. The first city on its route is Bowman at the junction of US 12. Continuing north, it passes between North Dakota's two highest points, White Butte and Black Butte. Near Amidon US 85 heads east for before going back north along the Little Missouri National Grassland for about . Near Belfield it junctions with I-94. After forming a concurrency with North Dakota Highway 200, it eventually passes through part of the scenic Badlands, crosses the Little Missouri River and passes near the Theodore Roosevelt National Park (North Unit). Then, at Watford City it travels west for where it turns back north before Alexander. U.S. 85 continues north as North Dakota 200 turns west toward Montana. South of Williston it crosses the Missouri River. The stretch from Watford City to Williston is in the process of being converted into an undivided four-lane highway, and should be substantially completed in 2014. A few miles later it meets with US 2 where the two overlap for as an expressway, which now bypasses Williston to the northwest. After US 2 heads east, US 85 continues north to a concurrency with North Dakota Highway 5. From there it is to Fortuna where US 85 heads back north for its remaining to the Canada–US border. History What is now US 85 from El Paso, Texas to then-US 66 (now NM 6) in Los Lunas, New Mexico (south of Albuquerque) was shown as U.S. Route 466 in an early 1925 plan for the U.S. Highway System. This north–south route was never signed in the field; instead, the route was designated as U.S. Route 570 and then as part of US 85. The number "466" was later used along another routing. Major intersections Texas Benito Juárez Street and at the Mexico–US border in El Paso. US 62/US 85 travels concurrently through the city. in El Paso. The highways travel concurrently to the Las Cruces–University Park, New Mexico line. New Mexico on the Las Cruces–University Park line. I-25/US 85 shares a hidden concurrency to Fountain, Colorado. in Las Cruces west of San Antonio in Socorro. The highways travel concurrently to south-southwest of Abeytas. in Albuquerque in Bernalillo south of Santa Fe. US 84/US 85 travels concurrently to Romeroville. US