Skip to main content

Nevada State Route 431; the Mount Rose Highway

Back in 2016 I had a chance to drive Nevada State Route 431 from NV 28 at Lake Tahoe northeast to US 395A/NV 341 south of Reno.






NV 431 is a 24.4 mile State Highway and as the sign above states is reputed to be the highest all-year pass in the Sierra Nevada Range at 8,911 feet above sea level.  The Mount Rose Highway has been a Signed State Highway for a long time first appearing on the Nevada State Highway Map in 1932 as NV 27.

1932 Nevada State Highway Map

Unlike nearby NV 28 the numbering of NV 27 was reassigned to NV 431 in 1976 during the Nevada State Highway renumbering.  The new designation of NV 431 appears alongside NV 27 on the Mount Rose Highway on the 1978 Nevada State Highway Map.

1978 Nevada State Highway Map

NV 431 starts eastward from NV 28 on the northeast shore of Lake Tahoe in Incline Village at approximately 6,350 feet above sea level.


From Incline Village NV 431 begins to ascend quickly and has a massive vista of Lake Tahoe at the first major hairpin.


NV 431 quickly rises to the 8,911 feet Mount Rose Summit.


Truckee Meadows can be seen ahead from Mount Rose northeast on NV 431.


From Mount Rose NV 431 begins to descend rapidly crossing through the Mount Rose Ski Area.  NV431 has a minor unsigned junction at NV 878/Slide Mountain Ski Bowl Highway.


The rapid descent of NV 431 to Truckee Meadows continues through a large number of wide switchbacks before straightening out on a steep descent.


NV 431 has a junction with US 395/I-580 before terminating at the junction of NV 341/US 395A.


Comments

Popular posts from this blog

Hetch Hetchy Valley; Hetch Hetchy Railroad, abandoned Lake Eleanor Road, and the Wapama Fall Bridge

This June I took a trip out to Yosemite National Park upon receiving my COVID-19 Day Use Reservation.  My destination in Yosemite National Park was out in Hetch Hetchy Valley.  I sought to hike to the Wapama Fall Bridge which took me through some of the path of the former Hetch Hetchy Valley Railroad and abandoned Lake Eleanor Road.



Part 1; Hetch Hetchy Valley, the Hetch Hetchy Railroad, and reservoir roads

Hetch Hetchy is glacially carved valley similar to Yosemite Valley which is located on the Tuolumne River of Tuolumne County.  Hetch Hetchy Valley presently is impounded by the O'Shaughnessy Dam which was completed during 1923 as part of a project to deliver water and hydroelectric power to the City of San Francisco.  Before being impounded Hetch Hetchy Valley had an average depth of approximately 1,800 feet with a maximum depth of approximately 3,000 feet.  Hetch Hetchy Valley is approximately three miles long and as much as a half mile wide.  Hetch Hetchy Valley is located dow…

Mineral King Road, the White Chief Mine, and the unbuilt California State Route 276

Back in July of 2016 I took Mineral King Road east from California State Route 198 to Mineral King Valley within the Sierra Nevada Mountains of Sequoia National Park.  This June I revisited Mineral King Valley and made my way up to the White Chief Mine.


Mineral King Road is a 24.8 mile rural highway maintained by the National Park Service and as Tulare County Mountain Road 375.  Mineral King Road originates at California State Route 198 in Three Rivers near the confluence of the Middle Fork Kaweah River and the East Fork Kaweah River.  Mineral King Road climbs from a starting elevation of 1,400 feet above sea level to 7,830 feet above sea level at the White Chief Mine Trailhead in Mineral King Valley.  Notably Mineral King Road is stated to have 697 curves.


Mineral King Road has an average grade of 5.1% but has several stretches between 15-20% in places.  Pjammycycling has a detailed breakdown on the grade levels over the entirety of Mineral King Road.

Pjammycycling on Mineral King R…

California's Rogue Sign State Route Shields

While recently revisiting Yosemite National Park I took a couple minutes to capture some of the California Sign State Route shields posted by the National Park Service ("NPS").  None of the NPS shields were actually posted on roadways maintained by Caltrans but were clearly intended to create route continuity with the Sign State Highways.  This phenomenon is not exclusive to Yosemite National Park and can be found on numerous roads not maintained by Caltrans throughout California.



Part 1; Route continuity over who maintains the route

In the very early era of State Highways in California the Division of Highways didn't actually field sign the Auto Trails or even US Routes.  The responsibility of Highway signage fell to the California State Automobile Association ("CSAA") and Automobile Club of Southern California ("ACSC").  The Auto Clubs simply signed Highways on roadways that best served navigational purposes.  These navigational purposes often didn&#…