pl23_wea01401.jpg

Dust and sand heaped up against fence windbreak. Local drifting began almostimperceptibly and finally merged with regional blowing.Prior to the 1930'sthere had been a number of episodes of dust storms occurring in the Dust Bowlarea. In: Erosion and Its Control in Oklahoma Territory, Angus H. McDonald,Misc. Publication No. 301, Department of Agriculture. 1938. Figure 2. S21.A46.