Mil Potrero Highway is an approximately 8.2-mile component of Kern County Mountain Road 364 located along the San Andreas Fault Rift Zone in the San Emigdio Mountains. This corridor begins at the junction of Cuddy Valley Road/Mount Pinos Highway and extends westward through the community of Pine Mountain Club to the junction of Cerro Noroeste Road/Hudson Ranch Road at Apache Saddle. Mil Potrero Highway from Cuddy Valley to San Emigdio Canyon follows the general corridor of El Camino Viejo. El Camino Viejo was in common use by 1780 and was the original inland Spanish highway to Los Angeles. The Tenneco corporation would develop Mil Potrero Highway in the early 1970s to facilitate access to the then new resort community of Pine Mountain Club. Part 1; the history of Mil Potrero Highway The general corridor of Mil Potrero Highway from Cuddy Valley Road to San Emigdio Canyon follows the established routing of El Camino Viejo. The remaining part of the corridor west to...
Big Tujunga Canyon Road is approximately 13-mile-long rural highway located mostly in the San Gabriel Mountains of Los Angeles County. As presently configured Big Tujunga Canyon Road begins at Angeles Forest Highway (County Route N3) and extends west to Oro Vista Avenue in the Los Angeles neighborhood of Sunland. The earliest parts of Big Tujunga Canyon Road were constructed between Mount Gleason Road northeast to Hoyt Ranch at Vasquez Creek in the 1890s. The highway was extended east to Big Tujunga Dam in 1931. In 1958 Big Tujunga Canyon Road would be extended east again from dam to a terminus at Angeles Forest Highway. In 1959 the corridor of Big Tujunga Canyon was added to the definition of planned Legislative Route Number 266. Said planned state highway was developed as a trans-San Gabriel Mountain corridor which would have connected with US Route 466. During 1964 the Big Tujunga Canyon corridor would be transferred to Segment B ...