130 GUIDEBOOK OF THE WESTERN UNITED 
STATES. 
much time as is represented by the horizontal rocks in the upper and 
middle canyon slopes. Finally, a great period of 
time before all this 
is represented by the granites and associated rocks exposed in the 
inner gorge. They underlie the plateau and present a chapter in the 
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Powell and a view of his boats are given in Plat 
The hotel at Grand Canyon was named for Pedro de Tovar, who was — 
ensign general of Coronado’s expedition. He and most of his asso- _ 
earliest known his- 
tory of the crust of | 
our earth. 
The first white 
men to see the 
Grand Canyon 
were Cardenas and 
his 12 companions, 
who were guided 
there by Hopi In- 
dians from Tusa- 
yan. Cardenas was 
sent by Coronado 
to find the wonder- 
ful river of which 
DeTovarhad heard 
from the Indians. 
He remained four 
days on the rim at 
some point now 
unknown, looking 
in vain for a way 
to descend. It is 
always interesting 
Be eS ee ee 
to recall the heroie 2 
trip made by Maj. © 
J. W. Powell down 
the Grand Canyon 
insmall boats when 
practically nothing 
was known of its 
ter. His journey 
began at Green 
River, Wyo., May 
24, 1869, and was 
notably successful. _ 
A portrait of Maj. 
e XXXIV (p. 128). 
— eiates were men of high social position, De Tovar’s father being the _ 
