near Smith River to Oregon State Route 108 SR 49 in Sonora to US 395 near Bridgeport State Route 111 Bombay Beach to SR 195 at Mecca SR 74 in Palm Desert to I-10 near White Water State Route 116 SR 1 near Jenner to US 101 in Cotati Route 116, scenic drive along the Russian River Designated September 20, 1988, in Sonoma County: SR 1 near Jenner to Sebastopol east limit State Route 118 SR 23 in Moorpark to De Soto Avenue in Los Angeles State Route 120 Yosemite National Park to US 395 near Mono Lake State Route 121 SR 37 near Sears Point to SR 12 near Sonoma SR 221 in Napa to Trancas Street near Napa State Route 125 SR 94 near Spring Valley to I-8 in La Mesa Route 125, passes through scenic areas west of Mount Helix Designated March 1, 1971, in San Diego County: SR 94 near Spring Valley to I-8 in La Mesa State Route 126 SR 150 in Santa Paula to I-5 in Santa Clarita State Route 127 I-15 at Baker to Nevada State Route 138 SR 2 near Wrightwood to SR 18 at Crestline State Route 139 SR 299 near Canby to Oregon State Route 140 SR 49 at Mariposa to Yosemite National Park Route 140, scenic drive through the Merced River Canyon to Yosemite National Park Designated August 30, 1991, in Mariposa County: Mariposa to El Portal State Route 142 Brea to Peyton Drive in Chino Hills State Route 146 Pinnacles National Park to SR 25 near Paicines State Route 150 US 101 in Carpinteria to SR 126 in Santa Paula State Route 151 Shasta Dam to I-5 in Shasta Lake Shasta Dam Boulevard, runs along the slope of a ridge overlooking Shasta Lake and the Sacramento River Designated September 9, 1981, in Shasta County: Shasta Dam to Shasta Lake State Route 152 SR 1 in Watsonville to Hecker Pass SR 156 near San Felipe to I-5 near Los Banos Pacheco Pass Road, runs along the northern and eastern shore of the San Luis Reservoir, and through the western edge of the Central Valley Designated June 19, 1970, in Merced County: Santa Clara County to I-5 near Los Banos State Route 154 US 101 near Los Olivos to US 101 in Santa Barbara San Marcos Pass Road, passes through the Santa Ynez Valley and over San Marcos Pass in