Title 16 › Chapter 1— NATIONAL PARKS, MILITARY PARKS, MONUMENTS, AND SEASHORES › Subchapter LIX–G— CHACO CULTURE NATIONAL HISTORICAL PARK › § 410ii–3
The Secretary can add land, water, and rights inside Chaco Culture National Historical Park and the nearby archaeological protection sites by taking donations, buying them with donated or appropriated funds, or trading other property. Land owned by the State of New Mexico or its local governments can only be taken by donation or exchange. Land held in trust for a tribe or an individual Indian can be acquired only with that owner’s consent. Tribal governments may convey their trust beneficial interests to the Secretary by sale, exchange, or donation under terms the tribe and the Secretary agree are appropriate. The Secretary must try to get private lands by exchange first and should use exchanges plus cooperative agreements to protect privately owned archaeological sites. For exchanges, the Secretary must pick a pool of federal properties at least three times the private acreage, made up of similar resource types. Those federal parcels should be in blocks of at least one section when possible, and never smaller than one-quarter of a section. Most federal property under the Secretary’s control may be included, except certain units of the National Park, National Forest, or National Wildlife Refuge systems nominated by the private owner. Exchanges are generally for equal value, with cash allowed to balance values, but an unequal-value trade is permitted if both parties agree and the Secretary finds it serves the public interest. Federal lands removed from Chaco Canyon National Monument by this law may be traded for non‑Federal property acquired under the law, will be managed under the Federal Land Policy and Management Act of 1976, and transferring them to the Bureau of Land Management will not be treated as a “withdrawal” under section 103(j) of that Act.
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Conservation, Source: USLM XML via OLRC
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16 U.S.C. § 410ii–3
Title 16, Conservation
Last Updated
Apr 5, 2026
Release point: 119-73not60