At least five groups, each possessing distinct cultural patterns, settled in Boulder City, Nevada, in consequence of employment upon the Boulder Dam project. The cultural patterns represented were in constant conflict with one another-a conflict which is examined in its effects upon the standards of each group in respect to housing, sexual relationships, and participation in group activities. Two hypotheses are suggested in conclusion: (1) the conflict of cultures in a community results in some integration but also in the emergence of common conflict patterns and (2) such common conflict patterns need not represent a transitional stage of development to a common culture but may in themselves form a part of a stabilized form of culture.