This map shows the lands reserved for the Sioux Indians in the 1851 Treaty of Fort Laramie. What development led to the United States violating this treaty in 1874 and reclaiming the land that was most
sacred to the Sioux?
A)
the discovery of oil in the area
B)
the discovery of gold in the area
the construction of the Eerie Canal
D)
the construction of the Transcontinental Railroad