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California State Route 266

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State Route 266 marker

State Route 266
Route information
Defined by Streets and Highways Code § 566
Maintained by Caltrans
Length: 11.721 mi[1] (18.863 km)
Major junctions
South end: SR 266 at Nevada state line
  SR 168 at Oasis
North end: SR 264 at Nevada state line
Highway system
SR 265 SR 267

State Route 266 (SR 266) is a state highway in the U.S. state of California. The route is a connector between Nevada State Route 264 and Nevada State Route 266, intersecting SR 168 and thus providing a connection to the rest of the Owens Valley. Portions of the route were added to the state highway system in 1931, and became part of SR 168 in the 1964 state highway renumbering. SR 266 was officially designated in 1968.

Route description[edit]

Southern terminus of SR 266 at the Nevada state line. The "Welcome to Nevada" sign can be seen in the background.

State Route 266 begins at the western terminus of Nevada State Route 266 at the Nevada state line. The route travels west-northwest, then turns to the west for another 1.8 miles (2.9 km) before approaching Oasis, the only unincorporated community that the route passes through. At Oasis, SR 266 intersects SR 168, which serves as the gateway into the Owens Valley from Nevada. Upon leaving Oasis, SR 266 continues to the west briefly, then turns north-northwest. Within the last 7 miles (11 km), SR 266 slowly curves northwest as the route approaches the Nevada state line. The route ends at the state line at the southern terminus of Nevada State Route 264.[2]

The section of SR 266 from the western terminus to the junction with SR 168 is designated by the California State Legislature as eligible by law for the State Scenic Highway System;[3] however, it has not officially been designated by Caltrans as such.[4] The entire route, consisting of two lanes for two-way traffic, traverses on the flat land in the Fish Lake Valley east of the White Mountains, and it can serve as transportation of agricultural goods between California and Nevada via the route's only junction State Route 168. In the event that SR 168 is closed, SR 266 connects to Nevada State Route 264, which intersects with U.S. Route 6 in order to provide an alternate access to California.[2]


The segment of present-day SR 266 from Oasis to the Nevada state line (now Nevada State Route 264) was incorporated into the State Highway System in 1931 as Legislative Route 63;[5] it had formed part of the Midland Trail, one of the first auto trails crossing the entire country.[6] The route remained unchanged until 1965, when in that year the route's name was designated as Mono County Road 101.[7] In 1984, the definition was modified to redesignate the segment as an extension of State Route 168 in order for that route to be connected to Nevada.[8] Two years later, in 1986, there was a construction of a new segment traveling east from Oasis and connecting to Nevada State Route 266. When the extension was complete, the two segments – the SR 168 extension and the newly completed – were assigned SR 266.[2][9]

Major intersections[edit]

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Mono County.

Location Postmile
Destinations Notes
0.00 SR 266 – Lida, Goldfield, Beatty Continuation into Nevada; south end of SR 266
Oasis 4.30 SR 168 – Big Pine
11.72 SR 264 Continuation into Nevada; north end of SR 266
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b c California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015. 
  2. ^ a b c "State Route 266 - Transportation Concept Report" (PDF). Caltrans. June 2008. 
  3. ^ "CA Codes (shc:260-284)". California State Legislature. Retrieved June 24, 2012. 
  4. ^ "Officially Designated State Scenic Highways and Historic Parkways". California Department of Transportation. December 7, 2007. Retrieved June 24, 2012. 
  5. ^ California State Assembly. "An act establishing certain additional state highways and classifying them as secondary highways". Forty-ninth Session of the Legislature. Statutes of California. State of California. Ch. 82. 
  6. ^ Westgard, A.L. "Motor Routes to the California Expositions". Highway History. Federal Highway Administration. Retrieved June 25, 2012. 
  7. ^ California State Assembly. "An act... relating to state highway routes". 1965 Session of the Legislature. Statutes of California. State of California. Ch. 1875. 
  8. ^ California State Assembly. "An act...relating to state highways". 1983–1984 Session of the Legislature. Statutes of California. State of California. Ch. 409. 
  9. ^ California State Assembly. "An act... relating to state highways". 1968 Session of the Legislature. Statutes of California. State of California. Ch. 928. 
  10. ^ Staff (July 2007). "Log of Bridges on State Highways". California Department of Transportation. Retrieved February 10, 2008. 
  11. ^ "All Traffic Volumes on CSHS". California Department of Transportation. 2005–2006. Retrieved February 10, 2008. 

External links[edit]

Route map: Bing / Google

KML is from Wikidata