Oil shale
It was discovered in the region in the 1970s. it spurred economic growth in the neighboring areas of Colorado. however major a discovery it was, the industry declined leading to copper, silver and gold being the most important mineral resource in the Rockies mountain.
The correct answer is B) a simple peace treaty between the US and tribes.
In the end, the Fort Smith Council resulted in the signing of a simple peace treaty between the US and tribes.
Forth Smith, Arkansas was the place where government officials led by Dennis L. Cooley (Commissioner of Indian Affairs) met with the representatives of the Native American Indian tribes after the Civil War. The purpose of the meeting that started on September 8, 1865, was to negotiate new allocations and treaties with the Native Indian tribes. Among the tribe leaders that attended were the Seminole, the Chickasaw, the Comanche, the Creeks, the Quapaw, and the Choctaw.
Group? Maybe?
I hope I helped:/
Because it was To get more land to get more ressources that's why countries get involved in wars
