1. of 7. Sioux headdress / war bonnet- Native Americans Vow A Last Stand To Block Keystone XL Pipeline: They haven't abandoned their goal of killing what some call "the black snake." Tribes are busy preparing for "resistance training" aimed at TransCanada, the company that wants to develop the 1,700-mile pipeline. Boho, Navajo, Native Americans, Native American Indians, Native American Headdress, Native American Clothing, War Bonnet, Native American Artifacts, Native American