198 Geological Survey of the Territories in 1872. 
varying from 15° to 80°. No disturbance of the porphyries at 
the foot of the range was observed, which should have given 
evidence of any upheaval of the range continued to modern 
times. 
The Big Teton, named Mt. Hayden by our party, in default 
of any previous specific title, was found, by angular measure- 
ment, from well-determined barometric bases, to be 18,858 feet 
igh. An attempt to carry a mercurial barometer to the sum- 
mit failed of success: the reported reading of a good aneroid, 
“ the highest point attained, indicated an elevation of 18, 
eet. 
The summits of the range are far from being “ snow-covered,” 
as reported ; but huge banks of snow must last through the 
summer, in the various hollows of the mountain; and, in a few 
places, incipient glaciation was observed, though no true glacier 
as found, and probably none exists at the present day. 1n 
former years, however, glaciers of great size formed on these 
flats and in these hollows, and swept down the valleys on either 
side of the range, as is shown by the polished and striated rocks 
in the heads of the valleys, as well as by the numerous large 
and small boulders which line their lower courses. 
Leaving the Tetons, after far too brief an examination to be 
at all satisfactory, though as complete as the general interests 
of the survey would permit, the party turned back to the valley 
This is said to have been at the summit. The writer, who reached only 12,000 
feet, is not prepared to decide whether the summit was reached or not. The de- 
scription of a rude building home oath crest will give the means of deci ing the 
. e 
small pond, along the route of ascent, is said to have been covered with “ twelve 
fifteen feet o: ice.” Snowy ice certainly appeared over a consider- 
able part of it, but looked so rotten that those in advance, on the outwa 
ogy fe it not safe to attempt to cross it; and, on our return, about 4.00 P. ar 
g 
d 
E 
m and the writer went down to the of the pond and di out 
cup-fulls of water for drinki arp ears must those have been which heard 
the “h of a creek” which “ must e been twelve dred feet 
beneath the surface of the ” The ratio of statement to fact is not constan| 
to; since an eruption of Giantess Geyser, in the Upper Fire- 
hole Basin, is therein repo: at “two hundred feet or more”; 
writer measurements of that particular eruption, and found it to be 
afew inches less than sixty-three feet. ‘ 
column of water, “ eight feet in diameter,” from an orifice less than two feet 
diameter, is an interesting question in hydraulics! Our author probably er 
a . * . es ° true: ing h } 
¥ 
yet appear how his publishers could allow an article which in so many poin 
plainly contradicts itself to appear in so respectable a ine. 
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