Most people in a band were related to each other. Bands were led by chiefs and had councils of advisers. Council members agreed everything the band did. The survival and protection of the band as a whole was seen as more important than the individuals within it.
Bands in the same tribe supported each other during crises. Tribal meetings of all the bands were held each year to arrange marriages, trade horses and discuss issues. Chiefs and elders formed the tribal councils that advised tribal chiefs. Some tribes (e.g. the Sioux) were part of larger groups called nations.
Chiefs were chosen because of their wisdom and skills as warriors/hunters. They were rarely chiefs for life. Chiefs and councils decided where their bands would go and what should happen to those who broke with customs and traditions. But they did not have to be obeyed.
The best warriors from each band formed its warrior society. Members of the warrior societies supervised hunting and protected their bands from attack. All short raids and wars were led by the warrior society and the band's council would always consult them before they made decisions.
Plains Indians tribes had sacred areas. For the Lakota Sioux, the Black Hills, Paha Sapa, were sacred because this was where the Lakota believed their tribe originally came from
The highest respect and prestige was given to warriors, usually young men, for counting coup: landing a blow on an enemy and getting away without being injured
Between 1836 and 1846 the total number of migrants using the Trail was 5000. From 1849, tens of thousands used the Trail in the hope of finding gold in the West
Most migrants did not find gold. Professional miners with the equipment and expertise to mine underground (where most of the gold was) took over through the 1850s