The Kingdom of Saudi Arabia's geographical and topographical diversity was emphasized by British explorer Mark Evans, who drew attention to the abundance of historical and archaeological sites, tools used, and remains of animals and birds that provide evidence of past eras. Evans said: "In addition to the surface water wells that, I believe, were recently restored, where rainwater is contained and offers a place for watering camels and other animals as well as a place for extra water for desert travelers, there are carvings on the rocks throughout the Kingdom or presence of camels, who have been the friend of the Arab man since ancient times. These features indicate civilizations' existence and life in those places. The British explorer expressed his admiration for the diversity, colors, and shapes of the mountains that he saw on the course of his trip, as well as their hollows of caves inside them and the sculptures, indications, and interpretations they contain that need careful scientific research. The expedition team expressed their happiness with what they saw of the beauty of the place and its various natural ingredients. The "Reviving the Heart of the Arabian Peninsula" expedition, led by Evans and his team, continued on its sixth day to "Wadi Al-Sardah", on route to the west of the Kingdom, to spend the next day with "Mount Khanzar" and the Nafud Dalqan, after passing through the village of Miz'il, to proceed its path through the mountains on foot towards Ruwaidah, where they spent overnight in the middle of the harsh winter.
