The main purpose of this legislation, known as the Buffalo Tract Protection Act, is to protect certain lands managed by the Bureau of Land Management from mineral development. The goal is to preserve these areas for their environmental, recreational, and cultural value, ensuring they are not used for mining or other mineral extraction activities. Key provisions of the act include a formal withdrawal of approximately 4,288 acres of federal land from all forms of mineral development. This means that no new mining claims can be made, and existing rights are respected.