APM: 24 Location: SR 138 and SR 173, San Bernardino Cty No reassurance shield after the 173 junction. APM: 35 Location: SR 138 and Byron Rd, Crestline, San Bernardino Cty A few miles later we’ll approach a four-way stop. Stay straight to stay on 138. APM: 35 Location: SR 138 and Brookside Rd, Crestline, San Bernardino Cty Keep … Continue reading California State Route 138, SR 173 to SR 18