Pueblo Bonito, constructed by Ancestral Pueblo People a millennia ago, as seen from the air on Sept. 14, 2025. It is the most significant site at Chaco Canyon National Historical Park, which Pueblos and advocates say remains under threat from continued oil and gas development, and worry protections could be scaled back by the new administration. (Photo by Danielle Prokop/Source NM)The majority of water contamination linked to oil and gas spills …