Beinn Mhanach is the ugly duckling of the Bridge of Orchy hills. It is smaller than its neighbours, a lot less accessible and lacks none of the features which make the others so great. It is for this reason it is really only visited by the Munro baggers. This does however mean you will have a lot more of the hill to yourself which is no bad thing. Beinn Mhanach has a rounded summit and is normally climbed via its western ridge by a long walk in which skirts round the base of Beinn Dorain. This part of the walk can easily be cycled and actually is very pleasant. There are low cols connecting it to the rest of the Bridge of Orchy hills but the amount of descent / re-ascent involved means itís more favourable to climb on its own.
There are several tops along the summit ridge each is worth a visit. The views down Loch Lyon are impressive. Overall Beinn Mhanach is slightly outclassed by its surrounding neighbours and many would be put off by this but every hill has its own charm and Beinn Mhanach is no different.
There are parking places at Auch on the A82 just north of Tyndrum.