The people of the Thule culture, who entered the Canadian Arctic appro
ximately 1,000 years ago and eventually became the Inuit who today inh
abit that region, spent the long winters living in impressive semisubt
erranean houses constructed of boulders, skins, pieces of cut turf, an
d the bones of bowhead whales. Most sites contain fewer than 10 houses
, but some contain many more, lending to disagreement among archaeolog
ists concerning Thule settlement patterns. This paper reviews the crit
eria archaeologists have used to identify contemporaneous houses at la
rge Thule sites and identifies a new criterion rested at a site in the
High Arctic. The 14 houses at the Porden Point site appear to have ac
cumulated gradually through the abandonment of some houses and the con
struction of others. Therefore, the impressive appearance today of man
y Thule sites may not reflect their actual social/demographic nature.