On Thursday morning, law enforcement entered the Oceti Sakowin camp to do a final sweep before officially shutting it down, ending a months-long protest against the completion of the nearby Dakota Access Pipeline.
The Oceti Sakowin camp was the largest of several temporary camps on the northern edge of the Standing Rock Sioux Reservation in North Dakota. Protesters have been living on this land for months, in support of members of the Standing Rock Sioux.
Supporters have said that running the pipeline under under a part of the Missouri River known as Lake Oahe would jeopardize the primary water source for the reservation, and construction would damage sacred sites, violating tribal treaty rights. The river crossing is the last major piece of the pipeline that remains unfinished.
Photos: Angus Mordant for NPR