California State Route 203

From Wikipedia, the free encyclopedia
Jump to: navigation, search

State Route 203 marker

State Route 203
Route information
Defined by Streets and Highways Code § 503
Maintained by Caltrans
Length: 8.67 mi[1] (13.95 km)
Major junctions
West end: Minaret Summit
East end: US 395 near Mammoth Lakes
Highway system
SR 202 SR 204

State Route 203 is a state highway within Mono County, California, United States. It runs from the Mono-Madera County line (Minaret Summit) to U.S. Route 395 passing through the town of Mammoth Lakes.

Within Mammoth Lakes, State Route 203 is known as both "Minaret Road" and "Main Street." It connects to Lake Mary and the Mammoth Scenic Loop via secondary roads.

Route description[edit]

The route begins at Minaret Summit at Devils Postpile National Monument. It then heads east to Mammoth Scenic Loop Road, where it continues at shortly enters the town of Mammoth Lakes, where it is known as both "Minaret Road" and "Main Street". It continues east to its end at U.S. Route 395.

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).[2] 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
L0.00 Minaret Summit Road – Devils Postpile National Monument West end of SR 203
R3.80 To US 395 / Mammoth Scenic Loop Road
Mammoth Lakes 4.78 Lake Mary Road – Lake Mary
R8.67 US 395 – Lee Vining, Bishop Interchange; east end of SR 203
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ January 1, 2006 California Log of Bridges on State Highways
  2. ^ a b 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. 
  3. ^ California Department of Transportation, Log of Bridges on State Highways, April 2008
  4. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2007

External links[edit]

Route map: Bing / Google

KML is from Wikidata