State Route 74, part of which forms the Palms to Pines Scenic Byway or Pines to Palms Highway, and the Ortega Highway, is a state highway in the U.S. state of California. It runs from Interstate 5 in San Juan Capistrano in Orange County to the city limits of Palm Desert in Riverside County. Stretching about 111 miles (179 km), it passes through several parks and National Forests between the Pacific coast and the Coachella Valley.
State Route 140 is a state highway in the U.S. state of California, 102 miles (164 km) in length. It begins in the San Joaquin Valley at Interstate 5 near Gustine, and runs east into Sierra Nevada, terminating in Yosemite National Park.
State Route 38 is a mostly rural and scenic state highway in the U.S. state of California, connecting Interstate 10 in Redlands with State Route 18 in the Big Bear Lake area. It is one of the primary routes into the San Bernardino Mountains. Despite the orientation of its alignment, SR 38 is assigned in a west–east direction.
The State Scenic Highway System in the U.S. state of California is a list of highways, mainly state highways, that have been designated by the California Department of Transportation (Caltrans) as scenic highways. They are marked by the state flower, a California poppy, inside either a rectangle for state-maintained highways or a pentagon for county highways.
State Route 299 is an east–west state highway in the U.S. state of California that runs across the northern part of the state. At 305.777 miles (492.100 km), it is the third longest California state route, after Route 1 and Route 99, and the longest east-west route. Route 299's western terminus is at US 101 at the northern edge of Arcata, and its eastern terminus is at the Nevada state line at a point east of Cedarville. Between Arcata and Redding, Route 299 intersects with State Route 96, and is briefly co-signed with State Route 3. In Redding, it intersects with State Route 273, State Route 44, and Interstate 5. East of Redding, it intersects with State Route 89, and a section is co-signed with State Route 139 before reaching Alturas. It is then co-signed with U.S. Route 395 northeast of Alturas, and then runs east through Cedarville and to the border with Nevada. A ghost town, Vya, Nevada, can be reached via this route, which after the border becomes a dirt road, which was formerly Nevada State Route 8A. The segment of SR 299 between Arcata and Redding is the Trinity Scenic Byway, a National Forest Scenic Byway.
State Route 18 is a state highway in the U.S. state of California. It serves as a primary route into the San Bernardino Mountains, both from the Riverside–San Bernardino metropolitan area from the south and the Mojave Desert from the north. SR 18 runs from State Route 210 in San Bernardino to State Route 138 in Llano. It has two discontinuities: one in Big Bear Lake, the other in Victorville.
State Route 33 is a north–south state highway in the U.S. state of California. It runs north from U.S. Route 101 in Ventura through the Transverse Ranges and the western side of the San Joaquin Valley to Interstate 5 at a point east of Tracy. SR 33 replaced part of U.S. Route 399 in 1964 during the "great renumbering" of routes. In the unincorporated sections of Kern County it is known as the West Side Highway. In addition, the California Legislature designated the entire Kern County portion as the Petroleum Highway in 2004. The southernmost portion in Ventura is a freeway known as the Ojai Freeway, while it is known as the Maricopa Highway from Ojai to Maricopa.
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 96 is a state highway in the U.S. state of California that follows the Trinity and Klamath Rivers between State Route 299 in Willow Creek and Interstate 5 near Yreka in Northern California. For most of the route it goes through the Karuk Tribal Reservation, the Yurok Tribal Reservation, and the Hoopa Tribal Reservation. Over half of the length is the Bigfoot Scenic Byway, passing through "the region boasting the most sightings of Bigfoot of anywhere in the country" according to the National Forest Scenic Byway Program.
State Route 36 is an east–west state highway in the U.S. state of California that is routed from U.S. Route 101 in Humboldt County to U.S. Route 395 just east of Susanville in Lassen County. The highway passes through Red Bluff, the county seat of Tehama County, on the northern edge of the Sacramento Valley. The portion of SR 36 travelling past Lassen Volcanic National Park and Lake Almanor is part of the Volcanic Legacy Scenic Byway, a National Scenic Byway. Also, Route 36 between Alton and Susanville is a designated Blue Star Memorial Highway.
State Route 44 is a state highway in the U.S. State of California that travels in an east–west direction from State Routes 273 and 299 in Redding to Lassen Volcanic National Park before ending at State Route 36 west of Susanville. This final portion, between the park and its terminus, is part of the Volcanic Legacy Scenic Byway, a National Scenic Byway.
State Route 108 is a state highway in the U.S. state of California that runs from the Central Valley and across the Sierra Nevada via the Sonora Pass. It generally runs northeast from downtown Modesto near the SR 99/SR 132 interchange, to U.S. Route 395 near the Nevada state line. The route was once recommended to continue south of Modesto to Interstate 5, although today that portion exists as a county road. Parts of SR 108 are closed annually during the winter due to inclement weather along the summit.
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 190 is a state highway in the U.S. state of California that is split into two parts by the Sierra Nevada. The western portion begins at Tipton at a junction with State Route 99 and heads east towards Porterville before ending at Quaking Aspen in the Sequoia National Forest. The eastern portion begins at US 395 at Olancha, heads east through Death Valley National Park, and ends at State Route 127 at Death Valley Junction. The 43.0-mile (69.2 km) portion over the Sierra Nevada remains unconstructed, and the California Department of Transportation (Caltrans) has no plans to build it through the wilderness areas. SR 190 is a National Scenic Byway known as the Death Valley Scenic Byway.
State Route 168 is an east-west state highway in the U.S. state of California that is separated into two distinct segments by the Sierra Nevada. The western segment runs from State Routes 41 and 180 in Fresno east to Huntington Lake along the western slope of the Sierra. The eastern segment connects Lake Sabrina in the Eastern Sierra to State Route 266 in the community of Oasis, just to the west of the Nevada border. The eastern segment of SR 168 also forms a concurrency with U.S. Route 395 between Bishop and Big Pine.
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 203 is a state highway in the U.S. state of California that 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 Road and the Mammoth Scenic Loop via secondary roads.
U.S. Route 6 (US 6) is a transcontinental United States Numbered Highway, stretching from Bishop, California, in the west to Provincetown, Massachusetts, in the east. The California portion of US 6 lies in the eastern portion of the state from Bishop in the Owens Valley north to the Nevada state line in Mineral County. Prior to the 1964 state highway renumbering, US 6 extended to the Pacific Ocean in Long Beach, California, as part of the historic auto trail named the Grand Army of the Republic Highway.
U.S. Route 395 (US 395) is a United States Numbered Highway, stretching from Hesperia, California to the Canadian border in Laurier, Washington. The California portion of US 395 is a 557-mile (896 km) route which traverses from Interstate 15 (I-15) in Hesperia, north to the Oregon state line in Modoc County near Goose Lake. The route clips into Nevada, serving the cities Carson City and Reno, before returning to California.
I-5 in Lathrop 
US 6 at Benton 
