Here:
Ute Mountain Ute Tribe v. Rodriguez
Gabe Galanda on Recent Indian Taxation Cases
From Indian Country Today.
Tenth Circuit En Banc Petition in Ute Mountain Ute Case
Tenth Circuit Rules against Ute Mountain Ute Tribe in State Tax Preemption Case
Here are the materials in Ute Mountain Ute Tribe v. Rodriguez:
CA10 Dissenting Opinion [the only opinion now available on the Tenth Circuit webpage]
Ute Mountain Ute Response Brief + Appendices