What does the dance in a subterranean roundhouse depict?

It represents the performance of an indigenous sacred ritual in the underground square in the Indian Pomo.

Explanation:

Dance in a Subterranean Roundhouse is a painting by French artist Jules Tavernier. This painting shows a large group of Indians and a few white men watching the ritualistic dance of two young Pomo Indians. The dance is being performed in the Pomo Indian underground square in Clear Lake, northern San Francisco and depicts the performance of an indigenous rital. The painting was commissioned by Tiburcio Parrott, a very influential banker in San Francisco during 1870. According to this description, we can say that the painting was intended to represent the performance of an indigenous sacred ritual in the underground square of the Indian Snitch.

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