Excerpt from the Tribal Brief:

This case concerns the proposed Dewey-Burdock in situ leach uranium
extraction project in the Black Hills of South Dakota. The project lands are within
the traditional aboriginal territory of the Tribe and included in the 1851 Fort
Laramie Treaty and the 1868 Fort Laramie Treaty (15 Stat., 635). The Project area
is known to contain a significant but as-yet undetermined number of cultural,
historic, and archaeological resources, including burial sites. EIS at 3-76 to 3-83
(JA1073-1080). NRC Staff and the applicant failed to conduct a competent
cultural resources survey of the site, denying Petitioners the NEPA/NHPA-
mandated opportunities to meaningfully participate in the assessment or
determination of the significance of the identified sites, the impacts from the
Project, development of mitigation measures that might be employed, or to identify
additional cultural sites that warrant evaluation.
The Tribe owns lands near the proposed project, leased for domestic,
agricultural, water development, conservation, and other purposes. The Tribe
USCA Case #20-1489 Document #1907420 Filed: 07/22/2021 Page 19 of 785
derives benefit and value, economically and otherwise, from its lands, and has a
strong interest in ensuring that these lands, and surface and ground waters, remain
in an unpolluted state.

It goes on to describe what sounds like FRACKING FOR URANIUM.

Here is the opinion in Oglala Sioux Tribe v. Nuclear Regulatory Commission. Briefs: Tribal Opening Brief.pdfDownload Federal Brief.pdfDownload Powertech Brief.pdfDownload Tribe Reply.pdfDownload Prior post here.

D.C. Circuit Rejects Oglala Sioux Tribe Challenge to Uranium Mine — Turtle Talk