Light Night Street Runner. Well after dark on July 25, 2020, Union Pacific UPY 1004 GP22T4 (née-MKT 310, 12/1972, EMD) was heading south on Embarcadero West in Oakland, California. The unit had been back in service a little over a year after its rebuild. This area of street running is used by UP and Amtrak, seeing easily over a dozen trains a day, including freight and long distance and commuter passenger service.

Full resolution pics and prints: https://www.riverrailphoto.com/freighttrains/e3cd8bbd8