The country in which the Mongols live is typically grass-land; in places it becomes barren and practically desert. In the greater part of their home, however, there is abundant pasturage for their herds, and at the same time such a lack of timber that a few stunted bushes in a sheltered valley are a sight which the traveller may ride miles to see. In some cases the Mongols do cultivate small patches of land, but this is alien to their true culture, and therefore beyond the present purpose. The clothing of the Mongols to-day has been very much affected by the trade goods which have spread over Central Asia. The Navajo build the corrals for their flocks in much the same way as they begin to build their houses. The wool trade is for the most part confined to the Navajo, although some of the pueblo people have sheep.