7 ON THE NORTH-WESTERN TRIBES OF CANADA. -633 
ground house. It was used by all the Salish tribes of the interior, and 
“spreads as far down Fraser River as the mouth of Harrison River, where 
Fig. 20.—Plan of Subterranean Lodge and Construction of Roof. 
both the large wooden house of Vancouver Island and the subterranean, 
_ lodge are in use. The latter is built in the following way. A pit, about. 
Fic, 21.—Elevation of Subterranean Lodge (Section A B). 
s 
12 to 15 feet in diameter and 4 feet deep, is dug out. Heavy posts, 
penne @ square, are planted in the bottom of the pit, about 4 feet from 
90. TT 
