Bigboy #4004 on display in a city park in Cheyenne, Wyoming. After sitting outside for many years, she is really showing the effects of weather. I fear that #4004 is on a downhill run from which she can no longer be saved.

Update — #4004 was stripped and repainted in 2011. Reports are that she looks really nice. However, this is only a cosmetic job. The locomotive has been flooded above its running gear at least twice since it has been sitting in Holliday Park, so its bearings are likely frozen and anything that hangs down under the boiler is probably rusted beyond repair.