Here is the complaint in Yankton Sioux Tribe v. United States Army Corps of Engineers (D.D.C.):
Yankton Sioux Tribe v. United States Army Corps of Engineers
Update in South Dakota v. Yankton Sioux Tribe Cert Petitions
Yankton Sioux Tribe has filed two cert petitions of its own. The first is a conditional cross-petition in the South Dakota v. Yankton Sioux case — Yankton Cross-Petition.
The question presented there:
Whether the Yankton Sioux Reservation includes all lands within its original boundaries other than those the Tribe ceded to the United States for sale to non-Indians in the Act of 1894, ch. 290, 28 Stat. 286, 314-19.
The second is a cert petition captioned Yankton Sioux Tribe v. United States Army Corps of Engineers — Yankton Sioux v. US Army Corps Cert Petition.
The question presented there:
The court of appeals held in this case that land transfers by the United States Army Corps of Engineers to the State of South Dakota pursuant to the Water Resources Development Act of 1999 did not violate §§ 605(b)(3) and (c)(1)(B) of that Act because they did not include lands within the “external boundaries” of the Yankton Sioux Reservation. The petitions and conditional cross-petition for a writ of certiorari in Nos. 10-929, 10-931, and 10-932 concern the boundaries of that reservation. The question presented is whether to hold this petition and then dispose of it as appropriate in light of the Court’s disposition of those other petitions.