It is in the Forest of Mamlorn, ten kilometres northeast of Tyndrum, and is one of the remotest of the southern Highlands[2] Creag Mhòr reaches a height of 1047 metres (3435 ft) and qualifies as a Munro and a Marilyn.

These two ridges enclose Coire Cheathaich (Misty Corrie), a former royal hunting ground which was made famous by Duncan Ban MacIntyre, the Scottish Gaelic poet who worked as a gamekeeper in the area.

Meall Tionail has an unusual geographic feature on its western slopes, it is marked on OS maps as Coire Chirdle, however it is not a corrie in the usual sense as there is no hollow cavity in the mountain.

This eastern approach starts at Kenknock (grid reference NN465364) which is now the farthest it is possible to drive up Glen Lochay with locked gates stopping cars from going any further, however it is viable to use a mountain bike.

If continuing to Beinn Heasgarnich from the summit, a direct line NE is not recommended because the hillside is steep and rocky, instead use the north ridge as mentioned before heading east to the col between the two mountains to avoid dangerous ground.