Castle, Maroon, Snow Mass, Capitol and Sopris - none of these 
peaks save Sopris having been previously named. 
Due to the serious illness of Mr. Shanks, a member 
of our party. Professor Hayden was prevented from taking further 
active part in the Survey and the geological work fell to me 
& 
along. Something of what I accomplished appears in my report, 
pages 59-72 of the 1874 report of the Survey, including maps, 
sections, diagrams and pictures. It was a proud day for me 
to be entrusted with the analysis of the splendid problems of 
this remarkable region. 
About the middle of September 25 closed our work just 
North of Sopris Peak and returned to the east front by way of 
Twin lakes and South Park to Canyon City arriving there on Octo¬ 
ber 20th. My field note books contain voluminous notes regard¬ 
ing the geology of the regions examined and many sketches and 
sections of geological structure. Few occurrences of general 
or special interest are noted in our diaries, the ordinary 
episodes of exploration and adventure had become too common¬ 
place with our party to receive more than passing attention. 
My report for the season's work, the first as an 
official geologist occurs in the Annual Report of the Survey 
for 1874 pp. 59-71 with numerous illustrations, sections and 
maps. 
Tne winter months of 1874—5 were spent in Washington 
preparing the report on the summer's work, and in the making 
of drawings and maps for the survey. 
