THE GLACIATION OF THE-UINTA MOUNTAINS? 
WALLACE W. ATWOOD 
The University of Chicago 
OUTLINE 
Location and General Physical Features of the Range. 
The Extent of Glaciation. 
Comparison of the Glaciation of the North and South Slopes. 
Glacial Epochs. 
The Influence of Topography upon the Ice. 
The Influence of Ice upon the Topography. 
Polished and Striated Surfaces. 
Influence of Glaciation on Drainage. 
Post-glacial Work. 
Glaciation and Irrigation. 
LOCATION AND GENERAL PHYSICAL FEATURES OF THE RANGE 
The Uinta mountains are located in the northeastern portion of 
Utah. They consist of a single range of peaks extending in a general 
east-west direction. If the axis of the range were continued west- 
ward it would cross the Wasatch range nearly at right angles and 
enter the Bonneville basin a few miles south of Salt Lake City. Most 
of the range is included in the Coalville, Hayden Peak, Gilbert Peak, 
and Marsh Peak quadrangles of the Topographic Atlas published by 
the U. S. Geological Survey. 
These mountains rise somewhat gradually above the plateau 
countries to the north and south. They reach their maximum eleva- 
tion in the central portion of the range where the highest peaks are 
from 13,400 to 13,525 feet above the sea. The maximum elevation 
of the mountains above the surrounding country is about 7,000 feet. 
From the high central portion of the range the crest-line descends 
gently both to the east and to the west. 
The width of the range is greatest in the central portion, where it 
measures, in a north-south line, fully 35 miles. ‘To the east and west 
of the central portion the decrease in width is very notable. ‘To the 
t Published by permission of the director of the U. S. Geological Survey. 
79° 
