These were used in Australia on the Newnes railway line. Newnes was a shale oil mining town; its history is particularly colourful because its remoteness made it difficult to import sufficient food for the town's population.
I was wondering where the 116 surviving machines are. These are not the type you see in Utah (American made 4-4-0). Instead they were built for rough (sometimes temporary) track and steep inclines. Often used in mining and logging.
https://en.wikipedia.org/wiki/Newnes_railway_line
https://en.wikipedia.org/wiki/Newnes,_New_South_Wales
https://en.wikipedia.org/wiki/Shay_locomotive
Edit: They have a link to their known locations.