AdvertisementAt The Sacred Stone Camp, Tribes And Activists Join Forces To Protect The LandSeptember 10, 2016Leah DonnellafacebookEmailNative American protestors gather at a construction site for the Dakota Access pipeline to perform a daily prayer ceremony. Over 1,000 people, most Native American, have gathered at two prayer camps along the Cannonball River near its confluence with the Missouri in North Dakota to protest the Dakota Access pipeline. (Andrew Cullen)