THE PLEISTOCENE LAKES 



54" 



Present Lakes and Areas of Ground- water Discharge 



Figure 2 is a map of the Basin-and-Range Province showing approxi- 

 mately the lakes that exist in this province at the present time. As most 

 of these lakes lie on very flat bottoms of the ancient lakes, they fluctuate 



Figure 2. — Map of the present Lakes in the Basin-and-Range Province 



greatly in area with the changing seasons. For this reason they are more 

 difficult to map than are the ancient lakes, Avhich had more definite shore- 

 lines. 



The region is at present not nearly so destitute of a water supply as 

 has often been assumed or as might be inferred from this map. The 



