Goldenrock Mine is a small mine located near Darkwater Crossing. It is under Stormcloak or Imperial Legion control, depending upon choices made by the Dragonborn in the Civil War storyline. The mine itself contains four corundum ore deposits, and several pickaxes. Outside, there is a silver vein on the left if the Dragonborn swims upriver. The mine also contains the Heavy Armor skill book Chimarvamidium. It can be found by heading straight ahead from the entrance, on a barrel next to a bed roll, which is the only place to sleep in the mine.