State Route 89 is a state highway in the U.S. state of California that travels in the north–south direction, serving as a major thoroughfare for many mountain communities in the Sierra Nevada and the Cascade Range. It starts from U.S. Route 395 near Topaz Lake, winding its way up to the 8,314-foot (2,534 m) Monitor Pass, down to the Carson River, and up again over the 7,740-foot (2,359 m) Luther Pass. From that point on, the route generally loses elevation on its way past Lake Tahoe, through Tahoe and Plumas National Forests until Lake Almanor. For roughly nine miles the route is then a part of State Route 36. The route then ascends to the 5,753-foot (1,754 m) Morgan Summit. After it enters Lassen Volcanic National Park it continues to gain elevation until it reaches its highest point in an unnamed pass in the middle of Lassen Peak and Bumpass Mountain. The road then descends and heads northwest, finally terminating at Interstate 5 at the foot of Mount Shasta at around 3,600 feet (1,100 m).
State Route 28 is a state highway in the U.S. state of California that travels along the northern shore of Lake Tahoe, starting at Route 89 in Tahoe City and ending at the Nevada state border, whereupon it becomes Nevada State Route 28.
State Route 45 is a state highway in the U.S. State of California that travels in a north–south direction in the Sacramento Valley from Route 113 in Knights Landing to Route 32 in Hamilton City.
State Route 53, also known as the Clearlake Expressway for part of its length, is a state highway in the U.S. state of California that runs in a north–south direction in Lake County east of Clear Lake, It connects SR 29 and SR 20 via the city of Clearlake.
State Route 124 is a state highway in the U.S. state of California that runs in Amador County from State Route 88 south of Ione to State Route 16 near Waits Station.
State Route 161 is a state highway in the U.S. state of California that runs along the California–Oregon state line in Siskiyou County. It begins at U.S. Route 97 north of Dorris and goes east to the intersection of SR 139 and Oregon Route 39 north of Tulelake. SR 161 is part of the Volcanic Legacy Scenic Byway.
State Route 136 is a state highway in the U.S. state of California, running along the northern edge of Owens Lake in Inyo County from U.S. Route 395 in Lone Pine to State Route 190.
State Route 269 is state highway in the U.S. state of California. It runs in the San Joaquin Valley from State Route 33 in Avenal to State Route 145 in the community of Five Points.
State Route 147 is a state highway in the U.S. state of California. The route runs along the eastern side of Lake Almanor. It serves as a bypass to connect State Route 89 and State Route 36 on the eastern side of the lake, whereas the two highways already meet on the western side in Chester.
State Route 151 is a state highway in the U.S. state of California. The route runs along Shasta Dam Boulevard in Shasta County from Shasta Dam to Interstate 5 near Shasta Lake City.
State Route 158 is a state highway in the U.S. state of California. Known as the June Lake Loop, it is a loop route of U.S. Route 395 in Mono County that serves the community of June Lake.
State Route 167 is a state highway in the U.S. state of California in Mono County. From U.S. Route 395, SR 167 runs along Pole Line Road north of Mono Lake eastward to the Nevada state line where it meets Nevada State Route 359. This road runs almost completely straight, and can be seen almost 15 miles (24 km) into the distance as a straight line.
State Route 281 is an approximately 3-mile (4.8 km) state highway in the U.S. state of California that runs along Soda Bay Road from near the southern shore of Clear Lake to State Route 29 in Glenview in Lake County. SR 281 is legislatively defined to be a loop route of SR 29 that runs along or near the southern edge of Clear Lake from Glenview to Lakeport, but most of this is unconstructed.
State Route 169 is a state highway in the U.S. state of California that is separated into two distinct segments by undeveloped areas in the Yurok Indian Reservation in Del Norte and Humboldt counties. The western segment runs from U.S. Route 101 near Klamath to Klamath Glen, while the eastern segment goes from Wauteck Village to State Route 96 near Weitchpec.
State Route 175 is a state highway in the U.S. state of California the runs through the Mayacamas Mountains, connecting U.S. Route 101 in Hopland in Mendocino County with State Route 29 in Middletown in Lake County.
State Route 191 is a state highway in the U.S. state of California. Known also as Clark Road, it is a spur route off of State Route 70 in Butte County, providing a connection to the town of Paradise.
State Route 200 is a state highway in the U.S. state of California near Arcata in Humboldt County. It is a cut-off connecting U.S. Route 101 and State Route 299. It runs along the north bank of the Mad River, to the north of the 101-299 junction.
State Route 201 is a state highway in the U.S. state of California that serves Fresno and Tulare counties in the Central Valley. It connects State Route 99 in Kingsburg with State Route 245 at Elderwood. State Route 201 forms a short concurrency with State Route 63 near Calgro.
State Route 203 is a state highway in the U.S. state of California that basically serves as a spur route from U.S. Route 395 in Mono County to the town of Mammoth Lakes and Minaret Summit. 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.
State Route 263 is a state highway in the U.S. state of California that is part of Business Loop 5 in Siskiyou County, due to being a parallel route of Interstate 5 to the west. Route 263 connects State Route 3 near the north city limits of Yreka to State Route 96 eight miles north. SR 263 was once part of U.S. Route 99.
