My biggest issue with scanning for ore, instead of digging for ore is the fact I am going past territories I like the look of because they do not have the ore's I am interested in. I think this makes most the tiles in the game redundant and locks in ore types away from people.   To resolve this I think something along the lines of the following suggestion would go a long way to solve this issue: (The numbers used are examples and could be changed for balance)   After you have