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The Tri-County Resource Management Plan/Environmental Impact Statement (RMP/EIS) “decision area” (the public lands and resources that are managed by the Bureau of Land Management in Sierra, Doña Ana, and Otero Counties) is a large (4,375 square miles) and varied landscape. The decision area contains both connected and closed surface-water and groundwater basins, some of which cross state and international boundaries, with competing water demands and both remote and populated areas. Some portions of the decision area are multiple-use lands, while others have varying levels of resource protections, including areas of critical environmental concern (ACECs) and wilderness study areas (WSAs).
Study results can be used to guide the sustainable preservation and management of water resources.