streamwork

noun

1. A place where an alluvial deposit of tin ore is worked.

   “The day is marked by the serio-comic custom of sending a young lad to the highest bound or hillock in the streamwork, and allowing him to sleep there as long as he can—…”

   “Tinworking clearly post-dates abandonment of the settlement, and may date the streamwork to the late medieval period, although it could have been worked at any time between this date and the nineteenth century.”