Board Thread:General Discussion/@comment-162.206.177.203-20150628204956/@comment-50.4.11.27-20170103045843

It's a bug. Sometimes ore veins don't ever replenish in certain locations. I've had this happen in 2 different mines, Raven Rock being one of them (the other one was an iron mine, but I forget which one). As far as I know there is no fix.