 Entrance to the adit of a chromite mine, Mutorashanga |
 Haib copper prospect, Namibia. The adit is in the centre of the photo. |
 Old adit near Johanngeorgenstadt, Germany. |
 Flooded level, West Driefontein mine, South Africa. The dolomite overlying the gold reefs hosts much groundwater, giving the mines flooding problems. |
