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 to why he refused them and what advantage their availability might have conferred on his forces at the Battle of the Little Bighorn. One factor concerned Major Marcus Reno's recent 8-day reconnaissance-in-force of the Powder-Tongue-Rosebud Rivers, June 10 to 18. This deployment had demonstrated that artillery pieces mounted on gun carriages and hauled by horses no longer fit for cavalry mounts (so-called condemned horses) were cumbersome over mixed terrain and vulnerable to breakdowns. Custer, valuing the mobility of the 7th Cavalry and recognizing Terry's acknowledgement of the regiment as "the primary strike force" preferred to remain unencumbered by the Gatling