I did take the photo of this narrow gauge steam locomotive in the year 1998. The picture shows the "Whistling Billy", an 8 tons Porter Locomotive (0-4-0ST) once belonging to the Merced Gold Mining Co. in Coulterville / California and came to that place in 1897. (slide scanned)
Volker Hunsche 02.12.2010, 2351 views, 1 comment
This locomotive should be No 1 (0-4-0ST) 24" from Merced Gold Co at Wells Fargo Office in Coulterville, CA.
You cold compare Your picture with this one:
If You want to see the position in the google-map use this side: