Describes the upland and lowland people, noting their physical location, social setting, and economies. Discusses the relationship between the two groups and with the government. Considers the changing situation and its impact on the relationship of these two groups of people, covering population increase, government programs, and out-side influences. Examines areas of conflict covering land rights, swidden agriculture, production and marketing of opium, behavior of government officials, and resettlement areas. Discusses the role of the Baptist Mission in providing education to the hill peoples, in the stabilizing of land use, in promoting understanding between upland and low-land people, and in encouraging cooperation between Thai and tribal churches. [TAIC]