APM: 12 Location: Topanga Canyon Blvd and Ventura Blvd, Los Angeles Reassurance shield after the US 101 interchange. APM: 7 Location: Topanga Canyon Blvd and Entrado Rd, Topanga, Los Angeles Cty A few miles later, we’ll head out of Los Angeles and into unincorporated Topanga. APM: 4 Location: Topanga Canyon Blvd and Old Topanga Canyon Rd, Topanga, Los … Continue reading California State Route 27, US-101 to SR 1