page_title: California State Route 120
section_title: Route description
hierarchical_section_title: California State Route 120 / Route description
caption_attribution_description: California State Route 120 Markers at Yosemite National Park.
context_page_description: State Route 120 is a state highway in the U.S. state of California, running west to east across the central part of the state. It runs from Interstate 5 in the San Joaquin Valley near Lathrop through Yosemite National Park, to its end at U.S. Route 6 in Mono County, eastern California. While the route is signed as a contiguous route through Yosemite National Park, the portion in park boundaries is federally maintained, and is not included in the state route logs. The portion at Tioga Pass is the highest paved through road in the California State Route system. This part is not maintained in the winter and is usually closed during the winter season.
context_section_description: SR 120 begins as a freeway intersecting Interstate 5 to extend Interstate 205 through Manteca. In east Manteca the freeway ends at SR 99 and becomes a highway which continues to head east through Escalon, Oakdale and other various small towns.  East of Oakdale there are no highly populated areas for 90 miles (144 km) as it heads into the foothills of the Sierra Nevada and into Yosemite National Park. Entering Yosemite, SR 120 is known as Big Oak Flat Road as it heads towards Crane Flat. After leaving Crane Flat, Big Oak Flat Road turns southeast towards Yosemite Valley, while SR 120 continues east as Tioga Pass Road (or often simply Tioga Road). The highway retains that name as it travels through Tuolumne Meadows, over Tioga Pass at an elevation of 9,945 feet, and through the Lee Vining Canyon on its 59-mile (95 km) journey to its intersection with U.S. Route 395, at Lee Vining.  After a jog to the south along US 395, it continues east as Mono Mills Road, skirting the south end of Mono Lake and providing access to the Mono Lake South Tufa as well as the historical site of Mono Mills before cresting Sagehen Summit and ending with the intersection of U.S. Route 6 at Benton.  Both the portions through Yosemite National Park and the stretch south of Mono Lake are subject to winter closure.  Usually the highway is open through Tioga Pass by the Memorial Day weekend at the end of May, and typically closes for the winter sometime in November.
  Tioga Road/Big Oak Flat Road is officially both a National Scenic Byway and a National Forest Scenic Byway. The segment through the Lee Vining Canyon between the eastern edge of Yosemite and US 395 is designated as the Lee Vining Canyon Scenic Byway, a separate National Forest Scenic Byway.
  SR 120 is part of the California Freeway and Expressway System, and both the western portion and the eastern portion west of US 395 are part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. SR 120 is eligible to be included in the State Scenic Highway System, but it is not officially designated as a scenic highway by the California Department of Transportation.
caption: California State Route 120 Markers at Yosemite National Park
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