Passage: The previous day, a detachment of the U.S. 7th Cavalry Regiment commanded by Major Samuel M. Whitside intercepted Spotted Elk's band of Miniconjou Lakota and 38 Hunkpapa Lakota near Porcupine Butte and escorted them 5 miles (8.0 km) westward to Wounded Knee Creek, where they made camp. The remainder of the 7th Cavalry Regiment, led by Colonel James W. Forsyth, arrived and surrounded the encampment. The regiment was supported by a battery of four Hotchkiss mountain guns.On the morning of December 29, the U.S. Cavalry troops went into the camp to disarm the Lakota. One version of events claims that during the process of disarming the Lakota, a deaf tribesman named Black Coyote was reluctant to give up his rifle, claiming he had paid a lot for it. Simultaneously, an old man was performing a ritual called the Ghost Dance. Black Coyote's rifle went off at that point, and the U.S. army began shooting at the Native Americans. The disarmed Lakota warriors did their best to fight back.By the time the massacre was over, between 250 and 300 men, women, and children of the Lakota had been killed and 51 were wounded (4 men and 47 women and children, some of whom died later); some estimates placed the number of dead at 300. Twenty-five soldiers also died, and 39 were wounded (6 of the wounded later died). At least twenty soldiers were awarded the Medal of Honor. In 2001, the National Congress of American Indians passed two resolutions condemning the military awards and called on the U.S. government to rescind them.The Wounded Knee Battlefield, site of the massacre, has been designated a National Historic Landmark by the U.S. Department of the Interior. In 1990, both houses of the U.S. Congress passed a resolution on the historical centennial formally expressing "deep regret" for the massacre.

Question: Where did the massacre happen?
Wounded Knee Battlefield