1740 and 1850, is an earthlodge located in the 1,758 acre Knife River Indian Villages National Historic Site in North Dakota, United States.

[3][4][5] The Big Hidatsa site is located near the junction of the Knife and Missouri Rivers close to Stanton, North Dakota.

[2] The Big Hidatsa site and its neighbors are the villages at which Lewis and Clark and the Corps of Discovery were assisted by Sacagawea during their expedition.

[2] After Fort Mandan was erected by the Discovery Corps, trading was conducted between the men of the expedition and people of Big Hidatsa.

The Knife River Indian Villages National Historic Site is also a destination for canoeing and hiking.