History of Montana degree of longitude northward to the boundary line of the British possessions. The boundaries of Montana territory did not change during its existence. Montana was admitted to the Union as the state of Montana on November 8, 1889. The Battle of the Little Bighorn—also called Custer's Last Stand and the Battle of the Greasy Grass—was an armed engagement between a Lakota (Sioux)-Northern Cheyenne-Arapaho combined force and the 7th Cavalry of the United States Army. It occurred June 25–June 26, 1876, near the Little Bighorn River in eastern Montana Territory near present-day Hardin, Montana, on land that today is part of
Battle of the Little Bighorn northwest, his movements masked by the thick bramble of trees that ran along the southern banks of the Little Bighorn River. The same trees on his front right shielded his movements across the wide field over which his men rapidly rode, first with two approximately forty-man companies abreast and eventually with all three charging abreast. The trees also obscured Reno's view of the Native American village until his force had passed that bend on his right front and was suddenly within arrow-shot of the village. The tepees in that area were occupied by the Hunkpapa Sioux. Neither Custer nor Reno