This valley stretches more than 70km (43 miles) from Boulmalne du Dadès to the Skoura palm grove and is coined the Valley of the Kasbahs with good reason. In centuries past this was a lawless, dangerous land, and to protect themselves from marauding invaders and continuous battles between rival clans, families erected hundreds of castles along the fertile valley floor. These kasbahs were made of tabout and palm-tree beams, but since the 1930s, times have not been so dangerous, and many kasbahs have begun to rejoin the earth from whence they came as families move into more modern housing, sometimes located right next to the original kasbah. A section of the valley has taken to rose farming, and there are numerous shops along the highway selling rose water, oil, soap, and other products.