Working in Union Pacific's Davidson Yard in Fort Worth, Texas, are RP20BD 2628 (built by RPI, UPY 2628 was constructed from UP B23-7 184, which was the former Missouri Pacific 4684) and UPY 2618 (ex-UP B23-7 184, nee-MP 4684). These two locomotives were photographed on October 16, 2011. Photographed on private property with permission.