“Another climatic feature that has had important economic and perhaps, has the wind done more effective work than in the Great Plains environment is the wind. Nowhere in the world, perhaps, has the wind done more effective work that in the Great Plains. As compared with the humid East, the Great Plains country, particularly the High Plains, is a region of high wind velocity. The level surface and the absence of trees give the air currents free play. On the whole, the wind blows harder and more constantly on the Plains than it does in any other portion of the United States, save on the seashore.