Pipestone: The Rock -- National Register of Historic ...
Now, only American Indians are permitted to quarry the soft red stone for ceremonial pipes. In 1993 there were 30 active quarry pits at Pipestone National Monument, of which 16 represented the sole-source of economic livelihood for 50 to 60 American Indians. The area surrounding Pipestone, Minnesota, is rich with the legacy of the pipestone and ...