California State Route 18

State Route 18
State Route 18
	Map of southern California with SR 18 highlighted in red
Route information
	Maintained by Caltrans
Length	117.21 mi (188.63 km)
Existed	1934–present
Tourist; routes	Rim of the World Scenic Byway
Major junctions
South end	SR 210 in San Bernardino
	SR 138 near Crestline; SR 173 near Lake Arrowhead; SR 330 in Running Springs; SR 38 in Big Bear Lake; ; Old Woman Springs Road to SR 247 at Lucerne Valley; I-15 in Victorville; US 395 at the Victorville–Adelanto border;
North end	SR 138 near Pearblossom
Location
Country	United States
State	California
Counties	San Bernardino, Los Angeles
Highway system
	State highways in California; Interstate; US; State; Scenic; History; Pre‑1964; Unconstructed; Deleted; Freeways;

State Route 18 (SR 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.

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^ California Highways: State Route 18