Lakge-Scale Features 



43 



■C^-tTZ] 1 



GRAND 

 --. BANKS ! 



40»N 



30" N 



ZO'N 



ICN 



90° W 



70°W 



50° W 



Fig. 18. Index chart, showing the positions of various sections referred to in 

 figures in this book. The numerals on the lines are the figure numbers of the 

 corresponding sections. 



