California State Route 120

State Route 120 marker
State Route 120
Map
SR 120 highlighted in red
Route information
Maintained by Caltrans
Length152.562 mi[1] (245.525 km)
(Does not include the portion in Yosemite)
Existed1934–present
Tourist
routes
  • Tioga Road/Big Oak Flat Road
  • Lee Vining Canyon Scenic Byway
RestrictionsSegments through Tioga Pass, and between Mono Lake and Benton, closed in winter
Major junctions
West end I-5 in Lathrop
Major intersections
East end US 6 at Benton
Location
CountryUnited States
StateCalifornia
CountiesSan Joaquin, Stanislaus, Tuolumne, Mono
Highway system
SR 119 SR 121

State Route 120 (SR 120) is a state highway in the central part of California, connecting the San Joaquin Valley with the Sierra Nevada, Yosemite National Park, and the Mono Lake area. Its western terminus is at Interstate 5 in Lathrop, and its eastern terminus is at U.S. Route 6 in Benton. While the route is signed as a contiguous route through Yosemite, the portion inside the park is federally maintained and is not included in the state route logs. The portion at Tioga Pass at Yosemite's eastern boundary 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.

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