The Musa
ibn Nusayr Fort is situated on the summit of Jabal Umm Nasir which lies in the
middle of the old town of Al Ula and was built during the 6th to 3rd
centuries BC with Lihyanite inscriptions and Nabatean coins found in the
archaeological strata. It has been renovated many times across the years and
was built for observation and defence of the town and is accessed by means of
stone steps, which is some cases, have been hewn out of the mountain itself.
Water for the fort is provided by a well dug at the foot of the mountain on the
southern side. It is possible to climb to the top of the fort for a beautiful
panoramic view of the old town and new city below.