In the mouth of the Ikh Bichigt in the Bayangiin Nuruu Mountain, there is a natural gallery with enormous rock paintings, which are a valuable cultural heritage written by ancient people some 3000 years ago on the rocks. One of the most interesting pictures here is a man plowing a field with a cow and a plow. This painting belongs dating back to 3000 BC. This is the evidence that inhabitants of this the area used livestock power in about 5,000 years ago, to engage in agriculture. Therefore, one researcher said that this picture shows that Mongolia is one of the first people in the world to build a cart.