Here are the materials in United States v. Jackson:
reservation diminishment
Tenth Circuit Finds Osage Nation Reservation Diminished in Tax Case
Opinion here: Osage Nation v. Kemp, 09-5050 (March 5, 2010)
Briefs here.
Appellate Briefs in Osage Nation v. Kemp Tax/Reservation Disestablishment Case
Here:
Lower court materials are here.
CA7 Decides Wisconsin v. Stockbridge-Munsee Case
Here is the opinion — ca7-opinion
And here are the materials, including briefs and the lower court opinion.
Case to Watch — Stockbridge Munsee Reservation Diminishment Case
Years ago, Wisconsin sued the Stockbridge-Munsee Community over the site of its Class III gaming operation, alleging that the land upon which the casino was located was outside the reservation boundaries, or that the reservation had been disestablished. The case is in the Seventh Circuit now and briefing is underway:
1999-dct-opinion-wisconsin-v-stockbridge-munsee
2004-dct-opinion-wisconsin-v-stockbridge-munsee
What Remains of the Yankton Sioux Reservation?
After a decade of litigation, a federal court (D. S.D.) held a trial and reached a decision as to “what remains of the Yankton Sioux Reservation following the Supreme Court’s decision in South Dakota v. Yankton Sioux Tribe, 522 U.S. 329, 358 (1998).” Slip op. at 2.
Here are the materials:
Turtle Talk 