[8] Route 144, from SR 170 to Hillside Drive, was once US 91, which used to stretch from Sweetgrass, Montana to Long Beach, California.SR 166 started at an intersection with US 93 near Boulder City inside the Lake Mead National Recreation Area.Near the end of its route, the highway turned west before meeting its northern terminus, at an intersection with SR 564/SR 147.It served a sparsely populated section of the state, connecting northwestern Nevada to southern Oregon.The route was removed from the state highway system by 1999 to make way for an expansion of the adjacent Round Mountain Gold Mine.[13] State Route 378 began at a junction with SR 376 in the Big Smoky Valley of northwestern Nye County.[12] Nearing the town, the route curved southeast following Mariposa Drive for about 0.3 miles (0.48 km) to its terminus at the intersection of Main Street.[20] A new road to Round Mountain reappeared on the next version of the map, albeit realigned and without a route number.State Route 428 began at US 395, near the present-day Eastlake Boulevard interchange just north of Carson City.Near the northeast corner of the lake, the road diverged north to head towards New Washoe City.[25] However, the southern 0.768 miles (1.236 km) of the highway, near the Interstate 580/US 395 interchange, are still maintained by NDOT as a frontage road (FR WA45).SR 429 began at Hobart Road, near the Carson City – Washoe County line immediately adjacent to present-day Interstate 580 (I-580) and US 395.From this point, the SR 429 paralleled US 395 northward for about 1.2 miles (1.9 km) and then shifted westward to follow the foothills of the mountains to the west.The highway continued northward past Bowers Mansion State Park before turning east to terminate at US 395 just south of Washoe City.At that time, the route was shown on official state maps as being a paved road connecting the former town of Kimberly to US 50 via Ruth.[31] Although maps are unclear, it appears the road to Ruth was eliminated prior to 1964, and the spur to Kimberly was retained as SR 44.[32] The town of Ruth may have been relocated along the highway as well, in concordance with open pit mining operations in the area.[45] Both the paved and unpaved sections of Cherry Creek Road are now part of White Pine County Route 21.The route dates to the mid-19th century, as part of a wagon trail linking Lake Tahoe and Carson City that was later incorporated into the Lincoln Highway.In 2011, the state highway ended at a roundabout intersection with Fairview Drive just past the prison facility.The highway began at the intersection of Ormsby Boulevard and West King Street (SR 512) in a residential area of western Carson City.The route served the central portion of the city, providing access to several government buildings in the capitol district.At their meeting on November 14, 2018, NDOT's Board of Directors voted to transfer ownership of the remainder of SR 529 (between I-580 and Fairview Drive) to Carson City, in order to facilitate the city's goal to construct a complete streets project on South Carson Street.State Route 589 (SR 589) comprised a large portion of Sahara Avenue, a major east–west section line road in the Las Vegas Valley.[48] SR 601 ran along the full length of Main Street; both ends were at State Route 604 (Las Vegas Boulevard).The route followed McCarran Boulevard, an arterial ring road serving the cities of Reno and Sparks.The route followed McCarran Boulevard, an arterial ring road serving the cities of Reno and Sparks.[69] SR 780 was removed from the state highway system and transferred to Eureka County control on January 9, 2012, although the Nevada Department of Transportation will continue to upgrade pavement markings on the old route through 2022.