Last Chance Gulch:

https://www.visitmt.com/listings/general/sightseeing-tour/last-chance-tour-train

https://www.google.com/search?client=firefox-b-1-lm&sca_esv=bb2e894607922a5f&udm=2&hl=en&q=discovery+of+gold+in+the+last+chance+gulch&spell=1&sa=X&ved=2ahUKEwj0zJyvgKqIAxWnETQIHUkROtkQBSgAegQIBxAB&biw=1489&bih=846&dpr=1#vhid=_4GIj_-5tX88yM&vssid=mosaic

https://www.hmdb.org/m.asp?m=188672