Who is the most successful native American tribe?

The Cherokee Nation is generally considered the most successful Native American tribe. The Cherokee historically occupied a large territory in the Southeastern United States, and was one of the Five Civilized Tribes. The Cherokee developed a significant degree of self-governance, and made progress in agriculture, education, and other areas. Despite facing numerous challenges and periods of conflict, the Cherokee have maintained their cultural heritage and traditions, and continue to play an active role in American society.