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Model of a Cliff Dwelling called Mummy Cave Ruin, Northeastern 
Arizona. 
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Mummy cave ruin, called by the Navaho Indians Tseiyakin, was 
so named because the mummy of an infant was found in it. It is 
situated in Canyon del Muerto, a tributary of Canyon de Chelly 
in Northeastern Arizona. 
The inhabitants of this cliff dwelling were ancestors of 
some of the clans now living among the Hop! Indians, the habita¬ 
tion having been deserted in comparatively recent times. 
Mummy Cave Ruin lies in the shelter of two recesses about 
300 feet above the bed of the stream, and consists of two sec¬ 
tions, an eastern and western, connected by a ledge 110 feet 
long by 20 feet wide. The eastern recess is about 200 feet across 
and 100 feet deep; the western about 100 feet across and 75 feet 
deep. 
The western section is inaccessible except by the connect¬ 
ing ledge which is approached from the east. Its ground plan shows 
from fourteen to twenty-five rooms. A row of ten rooms can be 
traced on the connecting ledge which is wholly occupied by these 
buildings. The eastern section contains the most rooms. The ma¬ 
jority are rectangular in shape, but there are three or four 
circular rooms that are identified as ceremonial chambers and may 
be called kivas. 
The rooms of the eastern part number about fifty, which, 
with those in the western section, make a few less than ninety. 
The majority of these were habitations, but many were for storage, 
and some served as granaries. A few of the eastern rooms stand 
