Jan. 18 (UPI) -- The U.S. Army Corps of Engineers has launched a full environmental study of the Dakota Access pipeline's crossing in North Dakota.
On Wednesday, the Army published a notice to prepare an impact study on the Lake Oahe crossing of the Missouri River. It's about a half-mile upstream from the Standing Rock Sioux Tribe's reservation. The tribe protests the crossing because it relies on the lake for a variety of purposes, including fishing.