Chaco Culture National Historical Park
Stand · Find your defenders

Who’s defending Chaco Culture?

13 groups have it in their care

National park in New Mexico, 33,960 acres, managed by the National Park Service, designated in 1907.

The defenders

The groups doing the most work here

3 groups are on the record for Chaco Culture, in the order they carry the weight. The range says how strongly our editors, the court dockets and their own filings tie each one here. Give directly; nothing routes through us.

Leading the fight

On the ground

Also in the fight

10 more groups also work this ground

The situation

What’s happening to Chaco Culture

A thousand years ago, Chaco coordinated civilization across tens of thousands of square miles. Today its great houses are surrounded by thousands of oil and gas wells, with more permits approved every month. The 10-mile buffer zone that kept the industry at bay is being dismantled.

  1. 1907Established as national monument
  2. 1980Redesignated as national historical park
  3. 202210-mile buffer zone established
  4. 2025Buffer zone under review for rollback
  5. 2026BLM formally proposes revoking 336,000-acre buffer zone; 7-day comment period closes with no public hearings
  6. 2026BLM environmental assessment comment period closes (14 days)
BLM environmental assessment would reopen 336,400 acres to leasing

Source: KUNC · July 17, 2026

Buffer zone protections rolled back

Source: BLM · March 10, 2025

No public comment window is open on Chaco Culture right now. A call script is ready on the Public Lands Action Network, and the groups above are how the fight gets funded and argued in the meantime.

Your move

How to stand for Chaco Culture

Chaco Culture has defenders. It needs more.

The work is theirs. The backing is yours.

Sources and methodThe situation, timeline, and threats: the MTJP threatened-lands record for Chaco Culture, with per-item sources. Group crews and program ratios: IRS Form 990 via ProPublica Nonprofit Explorer, latest filed year, EINs on each group’s profile. Which groups defend this place, and their role: MTJP editorial curation, one verified link at a time, plus the federal court record and each group’s own footprint. Match ranges decompose into those signals on every row. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.