:},mi The American Geologist. June, 1894 
on a comparatively narrow tongue of land between the valley 
of Hoot river on the west and tin- deep ravine of Silver creek 
on the east, [n going down the Ste. Marie river by boat, on a 
clear day. tin- level line of these beaches i- easily seen on the 
bills fifteen miles away. Gravel terraces comparable with 
these were seen later, on the Canadian Pacific railway, eight 
miles east of < 'artier, in Ontario. If the ground there were 
as well cleared as at Root river, the shore line forms would 
probably he equally imposing. 
Si mmari and Conclusions. 
The following- table shows the altitude of the highest beach 
above sea level at the various localities described. The letter /• 
stands for l>r>i<-h ridge, and / for terrace. The altitude given 
is in each case that of the upper limit of submergence. But 
where that distinction was not (dearly made out, the altitude 
of the highest shore line observed is given as a doubtful upper 
limit. 
Attitude* <;/■' th< Mglie*t Slion Lint of tl,< nouth <;„ist ,,f lalct Superior. 
Feet above the sea. 
Surface of lake Superior, mean. L870-1888, (U. S. Lake Sur- 
vey) *>'»^ 
Duliiih /• (Lawson) 1134 
Maple Ridge /• 1133 
Iron River r 1155? 
Kimball t 1170 
L'Anse r 1190 
Marquette r 1190 
Houghton /■ 10104- ? 
Allouez t 1000+:! 
Sault Ste. Marie r i Lawson) 1«»14 
The facts gathered from these two excursions may be 
summed up briefly thus: The highest mark of postglacial 
submergence extends from Duluth to Marquette at a nearly 
uniform level, rising only about 55 feel eastward. Its altitude 
as a whole, however, is rather higher than would be expected 
when compared with other parts of the highest shore line in 
the same basin. Those of Green hay. an account of which 
was given in the preceding number of this magazine, are 
much lower, and those at the east end of the lake are also 
lower. Professor Lawson reports only two strands or shore 
lines on the north coast, which exceed the bights on the south 
coast. Loth are on Bit. Josephine, where he found terraces 
