what was the cause of the sand creek massacre?

Answer 1

The causes of Sand Creek massacre were rooted in the decades-long conflict for control of the Great Plains of eastern Colorado. The Fort Laramie Treaty of 1851 guaranteed ownership of the area north of the Arkansas River to the Nebraska border to the Cheyenne and Arapahoe. By the end of the decade, however, waves of Euro-American miners flooded across the region in search of gold in Colorado's Rocky Mountains. That placed extreme pressure on the resources of the arid plains, and by 1861 tensions between new settlers and Native Americans were rising.
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