Thousands of protesters have gathered in Cannon Ball, North Dakota to protest the building of the Dakota Access Pipeline, a proposed 1,172-mile pipeline enabling North Dakota-produced oil reach refining markets in Illinois.

The Standing Rock Sioux Tribe have attempted to block the project because it passes through North Dakota's Lake Oahe, a sacred site and a major water source for the Standing Rock Sioux.

Whether or not the tribe is successful in stopping the pipeline, it is clear that the protest is reshaping the national conversation for any environmental project that would cross the Native American land.