 The mountain's steep northern and western slopes are rocky higher up before becoming grassy as they fall to the valley.These grassy slopes are riven with many small streams which drain to the Water of Tulla which drains into Loch Tulla.The most common ascent of Beinn Achaladair starts from Achallader farm at grid reference from where it is usually climbed with the adjacent Munro of Beinn a' Chreachain which stands three kilometres to the north east.