California State Route 120

State Route 120
SR 120 highlighted in red
Route information
Maintained by Caltrans
Length	152.562 mi[1] (245.525 km) (Does not include the portion in Yosemite)
Existed	1934–present
Tourist routes	Tioga Road/Big Oak Flat Road Lee Vining Canyon Scenic Byway
Restrictions	Segments through Tioga Pass, and between Mono Lake and Benton, closed in winter
Major junctions
West end	I-5 in Lathrop
Major intersections	SR 99 in Manteca SR 108 from Oakdale to Yosemite Junction SR 49 from Chinese Camp to Moccasin Big Oak Flat Road to SR 41 / SR 140 in Yosemite National Park US 395 from Lee Vining to Mono Mills Junction
East end	US 6 at Benton
Location
Country	United States
State	California
Counties	San Joaquin, Stanislaus, Tuolumne, Mono
Highway system
State highways in California Interstate US State Scenic History Pre‑1964 Unconstructed Deleted Freeways
← 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.