From Wikipedia entry: "ALSO note that Dwarven Mines (built by Dwarven Workers) cannot ever be destroyed, neither by your enemies nor you. Do not place one on top of a resource you plan to use later!"
Maybe the Wikipedia contributor meant dwarven mines can't be destroyed in the sense that Obi-Wan Kenobi could not be destroyed by Darth Vader. When I allowed an orc spearman to camp on my mine to test the "indestructible mine" theory, he quickly dispatched it to dwarf mine heaven (assuming, of course, that all dwarf mines go to heaven).
PS-Perhaps my destroyed mine is now smiling down on the younger dwarf mines, imploring them to "use the force?"
Maybe the Wikipedia contributor meant dwarven mines can't be destroyed in the sense that Obi-Wan Kenobi could not be destroyed by Darth Vader. When I allowed an orc spearman to camp on my mine to test the "indestructible mine" theory, he quickly dispatched it to dwarf mine heaven (assuming, of course, that all dwarf mines go to heaven).
PS-Perhaps my destroyed mine is now smiling down on the younger dwarf mines, imploring them to "use the force?"