128 J. LeConte—Ancient Glaciers of the Sierra Nevada. 
end and Sugar Pine Point, a distance of only eight or ten miles, 
I saw distinctly the pathways of five or six. North of Sugar 
Pine Point there are also several. They are all marked by 
mountain lakes. I need only name Mt. Tallac, Fallen Leaf 
Lake, Cascade Lake, and Emerald Bay, all within three or four 
miles of each other and of the Tallac House. These three 
termined on a closer acquaintance. While staying at the 
Tallac House I repeatedly visited them and explored the 
cajions down which their materials were brought. I proceed 
to describe them. i 
_ Kallen Leaf Lake Glacier.—Fallen Leaf Lake (see map, p- 130) 
runs a cation bordered on either side by the highest 3 
this region. The rocky walls of this cafion terminate on the 
east side at the head of the lake, but on the west side, a hittle 
farther down. The lake is bordered on each side by a0 ad- 
