Tribal land holds more than property lines—it embodies history, culture, and sovereignty. Yet overlapping jurisdictions with county and state governments can create uncertainty and conflict. In this post, Elena Baca outlines the legal tools and strategic steps tribes can use to assert and defend their land-use and jurisdictional rights across New Mexico and the broader Southwest.
Jurisdictional Basics on Tribal Lands
Understanding who has authority where is the first step. Tribal, federal and state jurisdictional zones often interlock in complex ways. Key Supreme Court decisions—most notably *McGirt v. Oklahoma*—have reaffirmed that tribal lands retain their historic boundaries unless explicitly disestablished by Congress. This means that for matters ranging from zoning to criminal enforcement, tribes must know where their sovereignty begins and ends.

Legal Tools for Land Use
Tribes have several mechanisms to manage and protect their land:
- Land-into-Trust Applications, placing new acreage under federal trust to extend tribal jurisdiction
- Tribal Zoning Codes, crafting internal regulations for development, conservation and commercial use
- Leasing Authority, allowing tribes to lease lands for housing, agriculture or enterprise under 25 U.S.C. § 415
- Environmental Impact Reviews, using NEPA and state‐level statutes to guard against harmful projects
Common Disputes and How to Address Them
Jurisdictional overlap can spark disputes over:
- Trespass and Unauthorized Development on tribal land
- Taxation Conflicts when non-tribal entities operate on reservation property
- Permit Denials for cultural-site protection or renewable-energy projects
Proactive code-drafting, clear mapping and early engagement with county officials can head off these issues before they reach court.
Recent Southwest Case Study
In 2024, the Pueblo of Z joined with state regulators to challenge an unauthorized mining lease adjacent to its reservation. By presenting tribal zoning ordinances and environmental-review records, the pueblo secured an injunction halting operations and negotiated a revenue-sharing agreement for future permits.
Need a Land-Use Audit?
Whether you’re drafting new zoning codes or defending an existing right, Baca & Stone can perform a comprehensive land-use and jurisdictional audit tailored to your nation’s unique needs. Reach out today to schedule your review.


