The hills other major corrie stands on the northern slopes, this is Coire Luaidh (Corrie of Lead) which contains the hills only crags on its higher slopes. The corries name refers to lead mining which took place in the 18th and 19th centuries. Beinn Odhar stands on the Tyndrum fault, whose veins yielded large amounts of lead on Beinn Chùirn to the SW, however the mines on Odhar were not as productive. The best example of former mining activity on the hill can be seen on the southern slopes, at a height of 650 metres there is considerable evidence of an adit going into the hillside and much mining waste. Beinn Odhar stands on the drainage divide of Scotland with rainfall from the mountain going to both coasts, either going west via Glen Orchy to reach the sea at Oban or east by the River Tay to reach the sea at Dundee.