In the 1960s, to clear the way for the Trans-Alaskan Oil Pipeline, Congress gave Native Alaskans control of 10 percent of the state’s land. Tribal members were required to form for-profit corporations and produce income by logging, mining and drilling. The dividends were welcome, but many tribal members say the corporations eroded their relationship to the land, and to each other. Guy Hand reports from Hoonah, Alaska.