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 as Custer's Crow scouts reported Sioux tribe members were alerting the village. Ordered to charge, Reno began that phase of the battle. The orders, made without accurate knowledge of the village's size, location, or the warriors' propensity to stand and fight, had been to pursue the Native Americans and "bring them to battle." Reno's force crossed the Little Bighorn at the mouth of what is today Reno Creek around 3:00 pm on June 25. They immediately realized that the Lakota and Northern Cheyenne were present "in force and not running away." Reno advanced rapidly across the open field towards the