DAVIS: THE WASATCH, CANYON, AND HOUSE RANGES. 7 
the west and rose 500 or 1,000 feet above us. Allthe eastern slope was 
well dissected by sharply cut valleys of no manifest arrangement; the 
hills and spurs between them rose in graded slopes to rounded summits, 
as in figure 1. The structure of the mountain mass had no distinct 
influence on its form; the rocks were mostly gritty quartzitic beds, 
with some limestones and shales; the prevailing dip was eastward 
with moderate angles at first, and steeper farther eastward from the 
crest; but outcrops were rarely seen, even in the ravines that we fol- 
lowed. Six small and imperfectly developed cirques were noted along 
the east side of the range crest, as shown in the accompanying figure; 
their floors were not far from 8,500 feet in altitude. To the eastward 
Fra. 1.— The crest and higher eastern spurs of the Spanish peak Wasatch: look- 
ing west. 
of our point of view, a maturely dissected highland continued to the 
horizon; it was a part of the Plateau province, of which Sevier pla- 
teau, far to the southeast, was the most distinct element. It thus 
appears that nothing was seen on the back of this part of the Wasatch 
that could be interpreted as belonging to an earlier cycle of erosion; 
hence the features of the back slope confirm the evidence of mature 
post-faulting sculpture that is gained from the range front, where no 
sign of the initial fault face of the uplifted block is now to be distin- 
guished, except in the little terminal facets which truncate the spurs 
along the simple base line by which the range is here so decisively 
bounded on the west. 
In my previous paper, the wide-open cross valleys cut by Spanish 
