In 1868 how much land was set aside for the Great Sioux nation?

This included 33,000,000 acres (13,000,000 ha) of land outside the reservation which were previously set aside by the 1851 treaty, as well as around an additional 25,000,000 acres

The Treaty of Fort Laramie (also the Sioux Treaty of 1868[b]) is an agreement between the United States and the Oglala, Miniconjou, and Brulé bands of Lakota people, Yanktonai Dakota and Arapaho Nation, following the failure of the first Fort Laramie treaty, signed in 1851.

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.