a. 



Chart : 



106 dated April 1858 



(survey date 1852) 





-* 





\ 



b. Chart 206 dated January 1881 



c. 



Chart 206 dated 



Ma 



rch 1909 





\:::=?^ 



^ 



[ East Jetfy 



■ — -— _a 



West 



1 



y ^^^ 





C 



s 





Figure 11. Freeport entrance charts with depth contours in 

 feet below MLW (after Seelig and Sorensen, 1973) 



21 



