H. E< 
Extracts from the 
ANNUAL REPORT Oif THE UNITED STATES 
GEOLOGICAL AND GEOGRAPHICAL SURVEY OP THE TERRITORIES 
EMBRACING COLORADO AND PARTS OF ADJACENT TERRITORIES 
1B74 
O “0 —0—0—0—0—Q~0 
-Mr* Holmes sketched the different portions 
of the whole mass from as many poihts as possible. They 
contain about eight hundred square miles, and will be mapped 
on a scale of one mile to the inch* 
” Marching from hero by way of the Twin Lakes and 
South Park to Canon City, we carried on a running survey 
along our route, and from the latter place commenced work, 
- ■ 
on the last part of the summer's plan, the mapping of the 
sedimentary border-line and that of the coal from here to 
the Wyoming lino. This work, carried on without interruption, 
was finished by Mr* Chittenden, Mr. Holmes, and myself on 
the 20th of October;---" (Page 6) (Hayden’s Letter to the 
Secretary) 
o-o-o-o-o-o-o-o 
"During the season, Mr* Chittenden made 156 topo¬ 
graphical stations, and the total area surveyed was over 
four thousand square miles. Mr* W. H. Holmes labored with 
