on the Wahsatch and Oguirrh Mountains. 197 
masses of granite on the surface, and we may here see fresh 
faces thus split, measuring, at least, twenty feet vertical by more 
than this laterally. 
At a cabin known as “ Garrard’s house,” some six or eight 
miles up this cafion, is a fine terminal moraine of the ancient 
glacier system, forming a complete dam across the cafion, over 
which the road now winds and through which the mountain 
torrent finds its way after giving motion to Garrard’s mill. The 
surface of this old moraine I found to be approximately 2140 
feet above the Townsend House in Salt Lake City. The Town- 
send House is about 60 feet above Great Salt Lake, so that the 
lower end of the ancient glacier system of the Wahsatch at this 
point was, in round numbers, 2200 feet above the present level 
of Salt Lake, or 6400 feet above sea level, assuming 4200 feet to 
be the proper elevation of this. inland sea, as commonly stated. 
The following heights were determined by one of Green’s 
aneroid barometers, and may be considered as approximate. 
Mesa over Salt Lake Valley, -..------------- 510 “ 
Emmaville, half-way house, 
Garrard’s House, top of old moraine, -------- 2200 “ 
Central City, six miles above Garrard’s,....-. 4460 “ 
MN VOR Dee oa pes eae 5560“ 
The loftiest point yet measured in the Wahsatch is the Twin 
Peaks, which Clarence King has determined. I have not seen 
s figures, but they are said to make this point over 12,000 feet 
above tide. ; 
indicates for a large part of the mass a lower horizon. I find 
by chemical analysis that the white limestones, containing the 
contain a little silica, 
som © . . . 
i completely free ftom silica and iron, but containing a little 
um 
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