1874. 
FIELD SEASON OF THE GEOLOGICAL SURVEY OF COLORADO. 
During the two preceding years, 1872 in the Yellow¬ 
stone Park and 1873 in Colorado as Artist to the Survey, I 
i 
had made sueh progress in geological skill that in 1874 I was 
appointed Assistant Geologist and assigned to the field with 
the party personally directed hy Dr. Hayden, George B. Chitten¬ 
den being topographer. We outfitted at Denver and began 
work at Colorado Springs. A few days were spent in the study 
of the wonderful geological formations of Monument Park and the 
Garden of the Gods. The party then passed through South Park 
and took up the study of the glacial ^phenomena of the upper 
Arkansas Valley, the remarkable series of Moraines bordering 
the streams that descend from the great range on the West being 
well shown in my maps and drawings published in the 74 report, 
Page 48. 
This work on the eastern slope was only preliminary to 
the entry upon the great task before us beyond the Sawat^h range. 
Ascending Lake Creek we crossed the-high pass, with Mt. Elbert 
and Grizzly Peaks on the right and the Laplata Mountains on the 
left, into the Valley of the Gunneson and were soon in the midst 
of the great groups of mountains of which the Elk Mountains are 
the culminating features. It is the most picturesque and 
fascinating region that I have ever had the pleasure of explor¬ 
ing. Besides the lesser peaks we climbed Italian Mountain, 
so named on account of its brilliant coloration - White Rock, 
