T 1 1 



NARROWS 



CEREN-GE 

 Figure 12. Bathymetric map based on an 1885-88 hydrographic survey. 



Map (Veatch and Smith, 1939) shows an apparent natural 

 Hudson Channel, but also the presence of the Diamond Hill 

 waste mound in contrast to its absence in Figure 9 depicting 

 the survey of 1845. 



39 



