It would be really great if it would be possible to see how many stone/cobber/marble/iron/gold/coal-mines you have found/used out of the maximum you can have. Its a real pain having to count them and the possibility for error is huge.
Having a nice little interface for this would also mean that you dont send you geo's out when its not needed or its easier to figure out what would be most beneficial for you to send them out looking for.
Best regards