-42°20' 



+ 





Sco 



e in 



Yords 





1— 1 



1— 1 



1— 1 





1 



500 



Seal 







e in 



Meters 



iOOO 



1— 1 



1— 1 



M 





1 



500 



IOOO 



+ 



42O20- 



EXPLANATION 



Best Potential 



A 157 Core Location 

 2518 



2519 



■95- 



Navigation Fixes 

 Contours in Feet 



Figure 17. Bottom topography near the sand deposit off Nahant. Note 

 slight topographic expression. 



49 



