As the thick morning fog continues to linger longer into the day above the San Joaquin Valley, countless south bounds would appear from the hazy depths below on their climb for the high desert and points beyond. Navigating its way up and out of the valley fog, a long south bound BNSF manifest slowly works it’s way up the steep grade, between tunnels 7 and 8, through the parched brown foothills of the Tehachapi’s.