The sun sets over North Dakota’s Standing Rock Reservation on January 16, 2017.
The water protectors say the pipeline will destroy sacred burial sites and harm the environment.
| Getty ImagesA photo posted by @dakota_tourist on Jan 16, 2018 at 10:17am PST| The Standing Rock Sioux Tribe has filed a lawsuit against the U.S. Army Corps of Engineers for its decision to halt construction of the Dakota Access Pipeline.
| APA photo taken January 11, 2018 by the Associated Press shows the Standing Rock Dam, one of several sacred sites in North Dakota.
| Associated PressA photo of a water protector holding a sign during a protest in Cannon Ball, North Dakota, on January 5, 2018.| APA water protectora holds a sign as she waits to go out on the street after a demonstration on January 6, 2018, near the Cannon Ball Dam.
| REUTERSA protester stands in front of the Cannonball Dam as part of the #NoDAPL protest.
| AFPA protester holds a banner while protesting near the Dakota Highway overpass, the site of the proposed Dakota Access pipeline, near Cannon Ball on January 8, 2018 in Cannonball, North Carolina.
| MANDEL NGAN/AFP via Getty ImagesThe water protectores have accused the Army Corps, which owns the land and has jurisdiction over the land, of violating the Antiquities Act and federal law.
The lawsuit says the pipeline would destroy burial sites in the area, pollute the water supply, and harm native species.
A water protector holds a “Respect Our Sacred Sites” sign while on a boat with a group of other protesters at the Cannon Creek, North Dakotan Standing Rock, Reservation, on February 7, 2018 near Cannonball.
| Courtesy of the Standing Water Protection Organization/YouTubeA water source for the Standing Stone Camp, one that is the last refuge of the Lakota people.
| ReutersA man carries water as he walks along the banks of the Missouri River on a river bank in Cannon City, North Kansas, on September 28, 2018 after protests over the Dakota pipeline and its proposed route led to an oil spill.
| Mike Loccisano/ReutersWater protectors have been protesting the pipeline’s construction for weeks, saying the pipeline threatens sacred burial grounds and other important water sources.
The Standing Rock protests began as a peaceful demonstration in late September.
They have grown in intensity and size, as President Donald Trump has pushed for construction of a controversial oil pipeline in the region.
The protests also grew into a full-fledged occupation of the land by hundreds of tribal members.
Protests are taking place in other parts of the country as well, but the Standing Rainy Creek Sioux Tribe, the largest of the Sioux tribe, is one of the few that has been able to stay in the camp.