Western States
MT · WY · ID · NM · NV · AZ · UT · CO · WA · ORPrior Appropriation governs water throughout the West: rights are allocated by seniority and adjudicated by the State Engineer. In drought years, junior rights holders may receive zero water. BLM and Forest Service land borders many private parcels, creating inholding access challenges. Zoning is minimal to nonexistent outside municipal boundaries — you can typically build without a permit on your own parcel, but utility infrastructure is costly.