Representatives from 20 sovereign Pueblo nations, alongside New Mexico’s congressional delegation, converged on the U.S. Capitol this week to deliver an unwavering message: "Chaco Canyon is not for sale." This powerful declaration comes as the Bureau of Land Management (BLM) advances plans to revoke a critical 10-mile buffer zone, established in 2023, that currently prohibits new oil and gas drilling and mineral extraction around the sacred Chaco Culture National Historical Park in northwestern New Mexico. The proposed reversal, aligning with a previous administration’s emphasis on unfettered resource development, has ignited a fierce pushback from tribal leaders and Democratic lawmakers who view the region as an irreplaceable cultural and spiritual landscape.

Chaco Canyon, designated a UNESCO World Heritage site, stands as a profound testament to the advanced civilization of the Ancestral Puebloans, whose influence radiated across the Southwest more than a millennium ago. Its monumental great houses, intricate road networks, and sophisticated astronomical alignments represent an unparalleled archaeological record, revealing a complex society that thrived in a challenging environment. For contemporary Pueblo peoples, Chaco is not merely an ancient ruin but a living, vibrant landscape integral to their identity, a sacred place of prayer, pilgrimage, and ancestral connection stretching back thousands of years. "Chaco Canyon is a vibrant place of prayer, pilgrimage and core to the identity of many Southwest tribes, whose connection to this land stretches back thousands of years," U.S. Rep. Gabe Vasquez emphasized during Wednesday’s news conference in Washington, D.C. "In other words, there is no replacing it. The administration’s decision to revoke protections for the greater Chaco landscape are an absolute gut punch to New Mexico and to our pueblos, and to give just the public 14 days to respond is an insult."

The buffer zone in question, spanning approximately 336,404 acres, was instituted by then-Interior Secretary Deb Haaland, a New Mexico Democrat and the first Native American cabinet secretary, as part of her "Honoring Chaco Initiative." This landmark decision in 2023 was the culmination of decades of advocacy by tribal communities and environmental groups seeking to shield the fragile cultural and ecological integrity of the Chacoan landscape from the encroaching footprint of the extractive industries. Haaland’s order sought to balance energy development with the profound spiritual and historical significance of the area, establishing a 20-year withdrawal from new federal oil and gas leasing and mining claims. The current BLM proposal, however, threatens to unravel these protections, opening vast tracts of land to potential industrialization.

The urgency of the situation is underscored by a truncated two-week public comment period on the environmental assessment for the plan to allow mining and drilling, which concludes on July 29. Tribal leaders and their allies have vehemently condemned this condensed timeline as insufficient for meaningful public engagement on such a critical issue. "The question before us is simple: What kind of legacy will we leave?" questioned Cochiti Pueblo Gov. Phillip Quintana. "Will we choose short-term extraction, or will we choose to protect one of the most important Indigenous cultural landscapes in North America, a place whose meaning reaches far beyond any single administration?"

In response to the perceived procedural slight and the substantive threat, New Mexico’s five Democratic senators and members of Congress penned a letter to U.S. Interior Secretary Doug Burgum, demanding an extension of the comment period to at least 90 days. Furthermore, they urged Secretary Burgum to personally visit Chaco Canyon "before taking any action that would put this irreplaceable landscape at risk." This plea echoes an earlier commitment from Burgum, who reportedly agreed to visit the site during an appearance before the House Natural Resource Committee in June 2025. U.S. Rep. Teresa Leger Fernández, whose district encompasses Chaco Canyon, expressed her dismay, stating, "He lied. But we will hold him to his comment. We will hold the Department of Interior to the rules and the laws and the regulations, and we will not let them silence us." Joey Sanchez, chair of the All Pueblo Council of Governors, added, "We asked for a meeting, but we never got it. I don’t know if you’re here in town, but you know we’re here. We’re ready to be with you. We ask you to come and visit." Secretary Burgum has yet to respond to requests for comment on the matter.

Beyond the federal push, New Mexico state officials are also mobilizing. State Rep. Derrick Lente, D-Sandia Pueblo, has called upon Governor Michelle Lujan Grisham to assert the state’s unequivocal opposition and deploy state resources to defend the Chacoan landscape. Lente specifically urged the state Department of Cultural Affairs and the State Historic Preservation Officer to leverage their full authority under the National Historic Preservation Act (NHPA) to ensure that the cultural harm posed by the proposal is thoroughly and honestly evaluated. Governor Lujan Grisham’s office affirmed her administration’s strong stance, stating she has been "pushing back on this terribly shortsighted and reckless proposal for months, including submitting official administration correspondence in April and coordinating with New Mexico’s congressional delegation to bolster our state’s official opposition."

While the unity among New Mexico’s Pueblos and state leadership is evident, the issue presents a more complex picture within the Navajo Nation, whose vast lands encircle Chaco Canyon. Navajo Nation President Buu Nygren, who is not returning to office next year after placing third in the recent primary election, has publicly opposed the buffer zone. His stance largely reflects a concern for the economic rights of Navajo allottees – individuals who hold surface and subsurface possessory rights to parcels of land within the buffer zone, often viewing oil and gas development as a vital pathway to economic self-sufficiency. Both leading candidates to succeed Nygren have expressed similar views. Justin Jones has articulated that allottees should be permitted to develop oil and gas resources due to their possessory rights, a position reported by the Navajo Times in 2022. Similarly, Crystalyne Curley, the Navajo Nation Council speaker, strongly disagreed with Secretary Haaland’s 2023 decision to impose the 10-mile buffer, emphasizing the importance of tribal sovereignty and economic development.

However, this perspective is not universally shared within the Navajo community. Mario Atencio, a Navajo activist whose family holds allotments within the buffer zone, offers a counter-narrative, arguing that revoking the protections would grant the government "free rein to pollute the land." Atencio underscores the profound and challenging detrimental impact such development could have on the public health and well-being of local communities. This internal divergence highlights the complex interplay of cultural preservation, economic aspirations, and individual property rights that often characterize land use debates in Indigenous territories.

The debate over Chaco Canyon extends beyond specific sites and allottee rights, touching upon broader national and global implications. Environmentally, the expansion of oil and gas drilling introduces significant risks including air and water pollution, increased greenhouse gas emissions, habitat fragmentation, and the degradation of dark night skies crucial for cultural practices and astronomical observation. For the Chacoan landscape, an area already facing the pressures of climate change and desertification, further industrialization could irrevocably alter its delicate ecosystem and diminish its value as a natural and cultural heritage site.

Globally, the protection of Chaco resonates with international efforts to safeguard Indigenous cultural landscapes and heritage sites, many of which face similar threats from extractive industries and development. The struggle in Chaco mirrors ongoing tensions between economic development and environmental stewardship, particularly in regions rich in both natural resources and ancestral significance. The outcome of this battle will not only determine the fate of an ancient civilization’s legacy but also set a precedent for how the United States balances its energy needs with its solemn responsibilities to cultural heritage, environmental justice, and Indigenous sovereignty. As the public comment period rapidly draws to a close, the voices advocating for Chaco’s enduring protection are intensifying, demanding that short-term economic gains not come at the irreversible expense of a spiritual homeland and a shared human heritage.