The Sharlot Hall Museum in Prescott, Arizona is an extensive historical museum that includes several historic buildings including the oldest surviving log cabin and the original Governor's Mansion (so-called because it was the first building in Arizona with two rooms.) The museum itself is well worth a visit, with a lot of interesting items on display. There were several docents in the various buildings, most of whom I believe are volunteers, and they were all very helpful and well informed.
Anyway, at the entrance to the museum grounds is this tiny Porter 0-4-0T, which was recently cosmetically restored. It belonged to the Congress Gold Company, a local mining firm.
As you can see from the pictures, it was even used in passenger service, carrying workers to the mine on a single-truck open car. This seems about one step above transporting people on speeders.
It sits under the canopy of this Disneyesque station building.
In the visitor's center is an operating HO diorama of Prescott in the early years.