| State Route 203 | ||||
|---|---|---|---|---|
| Route information | ||||
| Defined by S&HC § 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 | ||||
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State highways in California(list • pre-1964)
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State Route 203 is a state highway within Mono County, California, USA. It runs from the Madera-Mono 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.
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.
The entire route is in Mono County.
| Location | Postmile [2][3][4] |
Destinations | Notes | |
|---|---|---|---|---|
| L0.00 | Minaret Summit Road – Devils Postpile National Monument | |||
| R3.80 | Mammoth Scenic Loop Road to US 395 | |||
| Mammoth Lakes | 4.78 | Lake Mary Road – Lake Mary | ||
| R8.67 | US 395 – Lee Vining, Bishop | Interchange | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | ||||