Precolumbian Archaeology Brief

Trump Admin Reversing Chaco Canyon Protections

Trump Admin Reversing Chaco Canyon Protections

Key Questions

What protections are being reversed around Chaco Canyon?

The BLM under the Trump Administration is rushing to end a 336,000-acre buffer zone around the Ancestral Puebloan hub at Chaco Canyon. This area contains 12,000 unsurveyed archaeological sites, with 90% of the land already leased.

Why is the situation at Chaco Canyon a preservation crisis?

The buffer removal threatens thousands of unsurveyed sites central to Ancestral Puebloan history. The public comment deadline of April 7 marks a peak crisis point for preservation efforts.

How might COPC files aid Chaco Canyon site preservation?

COPC (Cloud Optimized Point Cloud) is a format for lidar and photogrammetry 3D datasets accessible over the internet. It could enable efficient online surveying and documentation of the 12,000 threatened unsurveyed sites.

BLM rushing to end 336k-acre buffer around Ancestral Puebloan hub, threatening 12k unsurveyed sites amid 90% leased land. Public comment deadline Apr 7 signals peak preservation crisis.

Sources (1)
Updated Apr 5, 2026
What protections are being reversed around Chaco Canyon? - Precolumbian Archaeology Brief | NBot | nbot.ai