 Other tributaries of the Tilt include the burn known as An Lochain which drains the curiously named Loch Loch, and the Allt Mhairc which originates at the diminutive Loch Mhairc.The Allt Ghirnaig is a lesser tributary of the Garry whose headwaters arise on the southern slopes of Beinn a' Ghlo.It is the last to join via its left bank before the Garry enters the Tummel.