still keeping to the northwest we soon arrived at the south- 
west end of the lake, and after an hour’s hard struggle with 
timber and swamps reached the camp of Mr. Gannett f s party in 
the Geyser Basin. Dr. Peale was already at work making surveys 
of the Shoshone Geyser Basin. He had reached this point five 
days previously, in company with Mr. Gannett, and up to that time 
had been making geologic examinations in the southwestern part 
of the Park. 
Mr. Gannett had left the main camp on the morning of the 19th, 
accompanied by Mr. Thomas Cooper, for the purpose of continuing 
his topographical work along the southern border of the Park, and 
it was thought by his companions in the main camp that on the 21st 
he would probably ascend some one of the higher summits of the 
Red Mountain Range. Wishing to join him as soon as possible, 
and feeling the importance of taking advantage of every opportunity 
to examine the geology of this part of the Park, I set out alone 
on the morning of the 21st, outfitted with a pair of blankets and 
provisions for two days. I felt confident that I could find him 
within that time, or, if otherwise, I should be able to spend the 
22nd ofV Mount Sheridan and return to camp on the 23d. During the 
day I traveled steadily through the forest in a southeast direction, 
passing to the south of Shoshone Lake and touching the northeast 
corner of Lewis Lake. twenty miles of travel brought me to the 
base of the mountains, and just before sundown I passed out of the 
timber, climbed up the steep west face and out upon one of the 
northern summits of the range. I had given up the idea of seeing 
