In the California Route Marker Program, which designates county routes in California, only two highways exist in the "R" zone, which encompasses Riverside...

County routes in the U.S. state of California are controlled and maintained by the respective counties in which they are located. However, they are generally...

California. At 656 miles (1,056 km), it is the longest state route in California, and the second-longest in the US after Montana Highway 200. SR 1 has several portions...

both Route 7 and Route 710. The California Streets and Highways Code defines Route 710 as follows: 622. Route 710 is from Route 1 to Route 210 in Pasadena...

Southern California, United States. As of the 2020 census, the population was 3,186,989, making it the third-most-populous county in California, the sixth-most-populous...

State Route 13 (SR 13) is a state highway in the U.S. state of California. It runs entirely in Alameda County, connecting Interstate 580 in Oakland to...

98°W / 33.73; -115.98 Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, the population...

Route assignment, route choice, or traffic assignment concerns the selection of routes (alternatively called paths) between origins and destinations in...

primarily in the Central Time Zone, but northwestern Culberson County, including Guadalupe Mountains National Park, is in the Mountain Time Zone, making...

Alameda County (/ˌæləˈmiːdə/ AL-ə-MEE-də) is a county located in the U.S. state of California. As of the 2020 census, the population was 1,682,353, making...

San Mateo County (/ˌsæn məˈteɪ.oʊ/ SAN mə-TAY-oh), officially the County of San Mateo, is a county in the U.S. state of California. As of the 2020 census...

Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of California, with a population of 1,936...

Yolo County (/ˈjoʊloʊ/ ; Wintun: Yo-loy), officially the County of Yolo, is a county located in the northern portion of the U.S. state of California. Yolo...

Kern County is a county located in the U.S. state of California. As of the 2020 census, the population was 909,235. Its county seat is Bakersfield. Kern...

Ventura County (/vɛnˈtʊərə/ ) is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843...

Humboldt County (/ˈhʌmboʊlt/ ) is a county located in the U.S. state of California. As of the 2020 census, the population was 136,463. The county seat is...

Contra Costa County (/ˌkɒntrə ˈkɒstə/ ; Contra Costa, Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay...

Shasta County (/ˈʃæstə/ ), officially the County of Shasta, is a county located in the northern portion of the U.S. state of California. Its population...

officially the City and County of San Francisco, is a commercial, financial, and cultural center within Northern California. With a population of 808...

California High-Speed Rail (CAHSR) is a publicly funded high-speed rail system being developed in California by the California High-Speed Rail Authority...

Madera County (/məˈdɛərə/ ), officially the County of Madera, is a county located at the geographic center of the U.S. state of California. It features...

Siskiyou County (/ˈsɪskjuː/ SISK-yoo) is a county located in the northwestern part of the U.S. state of California. As of the 2020 census, the population...

"B" route, but where numbering would assist navigation. "D'' routes are detour routes for motorways. There are only two of them, D1 and D5 "R" routes are...

Sierra County (/siˈɛrə/ ) is a county located in the U.S. state of California. As of the 2020 census, the population was 3,236, making it California's second-least...

Glenn County is a county located in the U.S. state of California. As of the 2020 census, the population was 28,917. The county seat is Willows. It is located...

Napa County (/ˈnæpə/ ) is a county north of San Pablo Bay located in the northern portion of the U.S. state of California. As of the 2020 census, the population...

Kettleman City is a census-designated place (CDP) in Kings County, California, United States. Kettleman City is located 28 miles (45 km) southwest of...

Luis Obispo, and Imperial counties. Although geographically smaller than Northern California in land area, Southern California has a higher population,...

California is a state in the Western United States, lying on the American Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east...

5 occurred north and northeast of the town of Ridgecrest, California located in Kern County and west of Searles Valley (approximately 200 km [122 mi]...