A 
PROFILE OF ADMIRALTY INLET. iby 
of 4 miles (6 kilometers) between shores, and the maximum depth is 127 
fathoms (228 meters). ‘The U.S. Coast Survey soundings and the con- 
tours en the U.S. Geological Survey map of the Tacoma quadrangle give 
the profile. Whatever the original profile may have been, the existing 
one is a modified form. Above sealevel it presents the scarps of sea- 
cliffs, which are probably steeper than the earlier slopes; at sealevel is 
a wave-cut bench; below sealevel the slopes are probably subdued by the 
effect of landslides and by deposition. The relation of height of profile 
to width is thus shown to be strikingly moderate. 
In the following table the ratios of depth to width are given for a 
number of representative localities. Admiralty inlet is shown to be rela- 
tively deeper in its southern portion, the narrow arms of its southwestern 
branches (the Puget sound of Vancouver) are relatively deeper still, and 
Hood canal is relatively to its width the deepest of the hollows. The 
ratio ranges from 1:12 in Hood canal to 1:72 at the northern entrance 
to Admiralty inlet. 
Depth. Width. 
For Admiralty inlet and a 
Puget sound south of | s Nature of bottom. 
point Defiance. g 2 g 
Pe lho leg ear. 
ume Slee s 
ca = a MM m4 
Point Wilson to Admi- 
maliyaNeads 220% 2. ees. 46 84 | 3.75 | 6 1:72) Rocky. 
Foulweather bluff to 
Double bluff........ ; 64 | 114 | 3.125) 5 1:43) Sand and gravel. 
Point Jefferson to east 
SINOIBs va oho Sao eee 153 | 280 | 4.375) 7 1:26) Coarse black sand. 
Vashon island to point 
IP GUNG oc o Ocoee ecIeee 125 | 232 | 3.125) 5 1: 21] Green mud. 
Point Robinson to Bu- 
Gs Bb Seon 99 150 | 3.75 6 1:40} Gray mud. 
Point Defiance to Vashon 
TSlBUNG|S 30 lo.de Sere eee 37 67 | 1.25 | 2 1: 29| Gray sand and gravel. 
Steilacoom to McNeil 
iellenCless Sa ee eae 100 | 1838 | 2.5 4 1: 22| Gray mud. 
For Hood canal. 
i 
Hood head toeastshore.| 73] 1331.25 | 2 1:15} Gray sand and mud. 
Quatsap point to east 
BINONE Wye (-hse ars cls. ava's-s 88 | 161 | 1.875] 3 1:19} Mud. 
eicock point to east 
SUMO Cremsyctcyetessasaj/cccie sai 88 161 | 1.25 2 12, ine gre 5 
Middle of northeastern aoe 
SOW os eka ong eae 22 40 | .9 1.5 | 1:37] Rocky. 
