Tom a Choinich is a fine Munro boasting many superb corries and sharp ridges. Tom a Choinich is one of the most eastern Munros in Glen Affric connecting to Toll Creagach in the east and Carn Eige in the west. The summit is the convergence of 4 main ridges running W, NE, E and SE. The NE ridge runs to Creag Dubh before dropping to Loch Mullardoch. The SE ridge drops down to Gleann nam Fiadh via Creag na h-Inghinn. The East ridge as mentioned connects to neighbouring Munro Toll Creagach via Bealach Toll Easa. The western ridge sprawls out for several kilometres to Carn Eige. All ridges are craggy with steep drops on either side. This is due to a large array of corries encircling the mountain.
Tom a Choinich is one of the more accessible Munros of Glen Affric due to its close proximity to the minor road running through Glen Affric. Access is normally via the connecting ridge from Toll Creagach as the two are normally climbed together leaving the Munros further west for another day. There is parking available at Coille Ruigh na Cuileige on the northern shore of Loch Beinn a Mheadhoin.