These mines are probably the largest abandoned settlement in the area. The official word was that the mining company operating there (Strongholt Minerals) found the area to be devoid of any valuable resources. They left the mine after about a year of establishing it, leaving a small ruined settlement and several exploratory shafts.
The company dissolved soon after due to financial strains and several deaths. Rumors persist that something more nefarious was the cause. Some people say they were constantly attacked by savage tribes. Some say that House Joracc assasinated and sabotaged the leaders and operations, in order to keep their lift monopoly on river transports. Some even say that they dug to deep and disturbed something horrible. Whatever the reason, few have gone back to the Strongholt Mines since.