the Rio Puerco opened. Once paving was completed in 1937, with AASHO approval given on September 26, 1937, Route 66 was moved to this shorter route, known as the Laguna Cut-off west of Albuquerque and the Santa Rosa Cut-off east of Albuquerque. The bypassed roads became NM 6 once again to the west and part of US 84 to the east. Route description From the Arizona state line to the Grants area the landscape is mountainous, and US 66 meanders around I-40. It also passes through some Indian reservations. At Laguna, New Mexico is the Laguna Indian Pueblo. At Mesita, the highway originally followed what is now NM 6 to east of I-25 at Los Lunas. It passed through Albuquerque from south to north along Fourth Street, part of the historic El Camino Real de Tierra Adentro (El Camino Real). The highway is now replaced with I-25 through Santa Fe to, almost, Las Vegas (Historic 66 turns south before reaching Las Vegas), though several old sections exist which are barely (if at all) driveable. From south of Las Vegas back to I-40, the road has been replaced with US 84. When I-40 was established, it bypassed the main parts of towns. The later, and more popular, alignment, continued straight west to Albuquerque, becoming Central Avenue through the city. While the former US 66 through Albuquerque is now owned and maintained by the city of Albuquerque, a few US-66/BUSINESS I-40 signs remain along Central Avenue in the downtown area. East of Albuquerque, US 66 is now NM 333 all the way to Moriarty. A stretch of NM 333 in Tijeras is a musical road, with rumble strips that play "America the Beautiful". I-40 east of Moriarty to Santa Rosa was built by adding a second set of lanes to US 66. East of Santa Rosa, US 66 is now largely frontage roads for I-40 or business loops for Santa Rosa and Tucumcari. At San Jon, the original alignment (now gravel) continues to the Texas state line at the historic ghost town of Glenrio. A later alignment is the north frontage road for I-40. Major intersections Structures The New Mexico Madonna of the Trail is one of a dozen monuments (one in each state on the National Old Trails Road) commemorating the hardships of early pioneer travellers. She stands on US 66 in Albuquerque. Albuquerque is also home to the 1927 Art