Leaving No Trace: MOOP Map 2025, BLM Inspection & Solving Our Lag Bolt Problem | Burning Man Journal

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Leaving No Trace

March 14, 2026 By DA

29 comments

TL;DR

2025 was challenging. Early event-week rain and wind created tough MOOP conditions across Black Rock City. True to form, the Black Rock City community rebuilt, had a Burn, and cleaned up — followed by the 150-person Playa Restoration crew (Resto). Together, we once again passed the Bureau of Land Management’s Post-Event Inspection , staying under the one-square-foot-per-acre standard limit (under 0.002% MOOP). One clear word of warning from Resto: more than 2,000 lag bolts were still left anchored into the playa . Lag bolts remain the most serious recurring MOOP issue, and the primary focus for improvement as we come together for Axis Mundi 2026.

Playa Restoration All Stars (Photos by DA)

Burning Man’s Leaving No Trace Principle

One of the 10 guiding Principles of Burning Man, Leaving No Trace, states:

“The Burning Man community respects the environment. We are committed to leaving no physical trace of our activities wherever we gather. We clean up after ourselves and endeavor, whenever possible, to leave such places in a better state than when we found them.”

(Photo by Mr. Blue)<br>Community Problem Solving: The #1 Worst MOOP — Lag Bolts / Tent Stakes / Rebar (But Really Lag Bolts)

While we initially hoped lag bolts were just a temporary rising MOOP trend back in 2022, three consecutive years at #1 Worst MOOP tells a different story. Lag bolts are a problem that the Black Rock City participants must solve. The good news: it ain’t rocket science.

Defining the Lag Bolt Problem

Lag bolts are highly effective for anchoring objects into the playa. But when screwed flush into — or below — the surface, they disappear into the dust. Overlooked, they become both a leave no trace failure and a safety hazard for vehicles and people.

Resto’s MOOP data shows something important about the problem. This isn’t about a few camps missing many lag bolts — the problem is that many camps are missing a few. Across Black Rock City’s 157 million square feet, those small, easy-to-miss lag bolts — often no larger than half an inch at the surface — added up to 2,304 lag bolts in 2025.

If you have developed reliable techniques for managing and recovering lag bolts, we welcome those solutions in the comments. Shared practices help the community get stronger at Leaving No Trace.

So what are the not-rocket-science solutions?

Lag Bolt Finding Solutions

Visibly tag your lag bolts when you screw them in so they’re easy to locate and unscrew during breakdown. Use solutions such as marking whiskers, heavy-duty flagging tape, cords, ties, etc., that won’t become MOOP issues themselves.

Use a metal detector to help ensure no lag bolts or anchors remain hidden beneath the surface.

“Marking whiskers” are durable, six-inch plastic markers used to flag ground anchors so you can easily find them again. They are great for tagging lag bolts, tent stakes, and rebar. (Image courtesy of DA)<br>Bring a metal detector! They’re an easy way to find lag bolts and other ground anchors within your camp or art project! (Image courtesy of DA)<br>Leaving No Trace works when the community takes responsibility for the city we build together. Theme camps, art projects, and event infrastructure teams manage spaces ranging from a few hundred to a few thousand square feet, and are responsible for restoring those spaces before they leave. The 150-person Playa Restoration crew, made up of community members like you, stays behind for weeks to inspect and scour roughly 157 million square feet of playa. Resto is not the primary cleanup crew for camps and projects. Our role is to verify, remediate what’s missed, and ensure we meet federal standards.

The scale difference is enormous, but the principle remains the same: the care taken within each camp, project, or infrastructure footprint directly determines the work required to restore the playa, and whether we pass inspection.

Playa Restoration’s 30 yard MOOP Dumpster from mid-September to early October. (Photo by Mr. Blue)

MOOP Map 2025: What the Colors Actually Mean

The MOOP Map records cleanup effort and time spent by Playa Restoration crews across Black Rock City.

Clear areas indicate normal forward progress — occasional MOOP, but nothing worth writing home about. Yellow areas reflect moderate MOOP conditions, requiring slower, cautious, stop-and-go movement to avoid missing anything. Red areas represent difficult-progress cleanup conditions that stopped us in our tracks, impeding our momentum as we work to cover the entirety of Black Rock City’s roughly 3,700 acres before the BLM Post-Event Inspection.

Orange dots mark locations where Resto...