TJic Kcivcciiaivcm in Minnesota. — Elftman. 105 
Lake Kaniinistiqiiia. This lake was described by Ta}- 
lor* after this paper was written. As the writer has since then 
visited that region, his interpretation of the facts is added. 
As it has beeh mentioned before the highest lacustrine de- 
posits along the Port Arthur, Duluth and Western railroad 
occur in the vicinity of Silver mountain and do npt extend 
above the altitude of 1,230 feet above sea level. The region 
northwest of Silver mountain is very favorable to the deposi- 
tion of lake beaches, etc., had it been submerged. On the 
north side of the Giant's range, which crosses the central part 
of Marks township from the southwest, lacustrine deposits 
occur at an altitude of 1,500 feet and less, or about 300 feet 
higher than those at Silver mountain. These higher deposits 
correspond to those described by Taylor along the Canadian 
Pacific railroad. It seems that the area of lake Kaministi- 
quia is more restricted than that originally outlined. Lake 
Kaministiquia is regarded by the writer as a lake occupving 
the basin formed on the south by the Giant's range, on the 
west and north by the "height of land," and on the east by the 
ice sheet. The southwestern point of the ice barrier at the 
time of greatest extent of the lake stood at the east end of 
the Giant's range, near the Kaministiquia river. Upon the 
recession of the ice beyond the high land, the lake immedi- 
ately emptied into lake Duluth. It is noticeable that the lake 
existed in a region occupied at an earlier date by the northern 
ice lobe. 
Lake A/gonqnin. The non-existence of lake Warren 
in the lake Superior region has been quite fully discussed 
by Taylorf and Upham.J The beaches below those of lake 
Duluth are referred to the stages lake Algonquin. These 
lieaches arc without strongly marked or uniform characters 
which would serve to identify them without continuous trac- 
ing. On this account little can be added to the previous 
knowledge of this lake in the region northwest of lake Supe- 
rior. East of Port Arthur the highest beach recorded by 
*Amer. Geol., Vol. XX, pp. 117. 
tAMER. Geol., Vol. XVII, 1896, pp. 253-257; pp. 397-400; Vol. 
XVIII, 1896, pp. 108-120: "Studies in Indiana Geography." Chap \ 
1897. 
JAmer. Geol., Vol. XVII, 1896, pp. 23S-240; pp. 400-402; Vol. 
XVIII, 1896, pp. 169-177. 
