Silverwood, one mile from Cajon Pass' Summit, was not a location in railroad timetables until the mid-1980s, when the Santa Fe and Southern Pacific hoped to merge and connections between the Santa Fe's trackage and the SP's Palmdale Cutoff, in order to allow more freedom of movement between the two railroads. Of course, the merger never took place and the SP was absorbed by the Union Pacific – but the crossovers built at Silverwood (and Keenbrook) now allow the UP flexibility to access their West Colton Yard. On a snowy December 27, 2019, BNSF train S-LHALPC1-26, an intermodal train heading from the Los Angeles Harbor's Pier 400 to Logistics Park in Chicago IL, is about done climbing the grade as it is now a mile from Summit. This train is on Track 1, with parallel Track 2 next to it. On the left is Track 3, the original 1883 mainline, with a 3% grade – notice how this line drops downgrade more quickly than the other two. On the right is the Union Pacific's Mojave Sub (the former Southern Pacific "Palmdale Cutoff"), which now features a crossover from the BNSF's Cajon Sub – and the reason that Silverwood became a "place" on the railroads here.
