Burning Man’s MOOP Map uses a forensic 150-person sweep of 3,800 acres to publicly grade Leave No Trace compliance, with BLM inspection as the enforcement backstop.
Key Takeaways
150 workers walk the playa arm-to-arm post-event; all debris is logged and mapped by severity into a color-coded MOOP Map published annually.
BLM requires no more than 1 sq ft of debris per acre across 120 test points; failing means losing the permit to return.
2023 was the closest call in recent memory: 11 of 120 BLM test points exceeded the threshold.
Lag bolts were the top debris type in 2025, distributed broadly rather than tied to any single camp.
Per-capita debris has declined since its 2010 peak despite Black Rock City growing in size and complexity.
Hacker News Comment Review
Commenters attribute Burning Man’s cleanup success largely to the BLM permit threat: regulatory consequence, not culture alone, drives compliance.
Contrast with unregulated events like 4th of July on Lake Tahoe suggests the MOOP model is replicable where enforcement stakes exist.
Notable Comments
@soared: flags MOOP Map as a template for environmental regulation and pollution tracking more broadly.
