SMITH 



55 



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Figure 1 - Complex dune topography along the southern shore of 

 Lake Michigan. The light-colored areas are active blowouts, and 

 the contorted ridges are stabilized dunes. Maximum height of the 

 dunes is slightly less than 200 ft. The complexity of this dune area 

 is due to the superposition of different types of dunes of different 

 ages. (U. S. Department of Agriculture photo) 



Figure 2 - Broad belt of active dunes along 

 the southern Oregon coast. (U. S. Depart- 

 ment of Agriculture photo) 



