The Lycus or Nahr-el-Kelb (“Dog River”) flows from the northern and western flanks of Jebel Sunnin. It is formed by the confluence of three main streams. One of these rises near Afka, and runs to the south of west, past the castle and temples of Fakra, to its junction with the second stream, which is formed of several rivulets flowing from the northern flank of Sunnin. Near Bufkeiya the river constituted by the union of these two branches is joined by a third stream flowing from the western flank of Sunnin with a westerly course, and from this point the Lycus pursues its way in the same general direction down a magnificent gorge to the Mediterranean. Both banks are lofty, but especially that to the south, where one of Lebanon’s great roots strikes out far, and dips, a rocky precipice, into the bosom of the deep.[155] Low in the depths of the gorge the mad torrent dashes over its rocky bed in sheets of foam, its banks fringed with oleander, which it bathes with its spray. Above rise jagged precipices of white limestone, crowned far overhead by many a convent and village.[156] The course of the Nahr-el-Kelbis about equal to that of the Adonis. The Damour or Tamyras drains the western flank of Lebanon to the south of Jebel Sunnin (about Lat. 33º 45´), the districts known as Menassif and Jourd Arkoub, about Barouk and Deir-el-Kamar. It collects the waters from an area of about 110 square miles, and carries them to the sea in a course which is a little north of west, reaching it half-way between Khan Khulda (Heldua) and Nebbi Younas. The scenery along its banks is tame compared with that of the more northern rivers. The Nahr-el-Auly or Bostrenus rises from a source to the north-east of Barouk, and flows in a nearly straight course to the south-west for a distance of nearly thirty-five miles, when it is joined by a stream from Jezzin, which flows into it from the south-east. On receiving this stream, the Auly turns almost at a right angle, and flows to the west down the fine alluvial track called Merj Bisry, passing from this point through comparatively low ground, and between swelling hills, until it reaches the sea two miles to the north of Sidon. Its entire course is not less than sixty miles.