Great work Yoritomo, and good find on the maps. Have added the mines, and changed to silver mine for the Ouchi.
Only one question left, what was more valuable as a trade item, gold or silver?
And sometimes a clan dies out when controlled by the ai, not sure why, I always save EVERY turn on a fresh savegame, so I can go back to ANY move, if an important clan dies out I normaly just reload and end turn again, quite often the clan leader doesnt die and the clan gets a heir later. (you can delete the entire folder that holds save games after an campaign, it regens a fresh one.)
Anyhow the new patch should be available very soon, by mid april.