The study identifies significant risks to U.S. cultural heritage, particularly in states like California, New Mexico, Colorado, and Oklahoma, where clusters of at-risk sites are prominent. Historic buildings and districts are especially vulnerable, as their loss often results in irreparable damage to cultural memory. Nationally significant sites face disproportionately high exposure compared to state or local landmarks. The findings also highlight a lack of integration of heritage protection into wildfire planning frameworks, leaving many sites unprepared for increasing wildfire threats driven by climate change.