Kadisha Valley (), also romanized as the Qadisha Valley and also known as the Kadisha Gorge or Wadi Kadisha (), is a gorge that lies within the Bsharri and Zgharta Districts of the North Governorate of Lebanon. The valley was carved by the Kadisha River, also known as the Nahr Abu Ali when it reaches Tripoli. Kadisha means "Holy" in Aramaic, and the valley is sometimes called the Holy Valley. It has sheltered Christian monastic communities for many centuries. The valley is located at the foot of Mount al-Makmal in northern Lebanon. The integrity of the valley is at risk because of encroachment of human settlements, illegal building, and inconsistent conservation activity. Although it is not yet on the UNESCO "in danger" list, there have been warnings that continued violations may lead to this step. Geography The holy river, Nahr Qadisha, runs through the valley for 35 km from its source in a cave (grotto) a little way below the Forest of the Cedars of God. The sides of the valley are steep cliffs that contain many caves, often at more than 1,000 m and all difficult of access. The most scenic section of the valley stretches for approximately 20 km between Bsharri (), the hometown of Kahlil Gibran, and Tourza (). The Cedars of God The Kadisha Valley is near the Forest of the Cedars of God, survivors of the ancient Cedars of Lebanon, the most highly prized building materials of the ancient world. The forest is said to contain 375 individual trees, two claimed to be over 3,000 years old, ten over 1,000 years old, and the remainder at least centuries old. The Lebanon Cedar (Cedrus Libani) is described in ancient works on botany as the oldest tree in the world. It was admired by the Israelites, who brought it to their land to build the First and the Second temples in Jerusalem. Historical sources report that the famous cedar forests were beginning to disappear at the time of Justinian in the 6th century AD. History The Qadisha Valley's many natural caves have been used as shelters and for burials back as far as the Palaeolithic period. The Aassi Hauqqa (cave) in particular, near Hawqa, has yielded archaeological items indicating Palaeolithic, Roman, and medieval periods of use. Since the early centuries of Christianity the Holy Valley has served as a refuge for those in search of solitude. Historians