Is there any way of knowing which map's treasure I had already looted e.g. if I had stumbled across it in the course of the game? I want to avoid wasting gold on a map that is useless to me.
Thanks. I've come to the conclusion, after some experimentation with buried treasure, it's really not worth it i.e. the cost of buying the map is more than the value I get from selling the contents of the chest and the map.