Jabal Al-Aq, also known as "Maqrat Al-Dubs", is one of the most famous rock formations in the AlUla desert. Its bridge-shaped structure, which resembles a rainbow surrounded by two clouds, is a rare sight indeed, as this sprawling sandstone mountain is surrounded by semi-desert diamonds. dignified, and you can see these multi-colored pieces of quartz embedded in the rock itself and scattered over the surrounding ground.