How did urban relocation after World War II spread Plains powwow music and dance styles?

Following World War II, the U.S. Bureau of Indian Affairs initiated an Urban Indian Relocation Program that moved thousands of Native Americans from rural reservations to major metropolitan areas, such as Denver, Minneapolis, the San Francisco Bay area, and cities in southern California.12

This migration served as a catalyst for the spread of Plains powwow music and dance styles in several key ways:

• Cultural Diffusion: As Indigenous people from diverse tribal backgrounds—many of whom were not originally from the Plains—settled in these urban centers, they began to adopt and adapt the music and dance styles of the Plains peoples as their own.1
• Intertribal Collaboration: The relocation fostered a sense of pan-Indian identity and collaboration, encouraging interaction between different tribes that had previously been separated by geography.12
• Urbanization of the Powwow: The concentration of Native populations in cities led sponsors to host large-scale events in metropolitan settings. This environment encouraged the intensification of competition and the formalization of a "powwow circuit," where musicians and dancers traveled to events scheduled well in advance.1