Sonoran Desert National Monument
Stand · Find your defenders

Who’s defending the Sonoran Desert?

14 groups have it in their care

National monument in Arizona, 486,149 acres, managed by the Bureau of Land Management, designated in 2001.

The defenders

The groups doing the most work here

4 groups are on the record for Sonoran Desert, 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.

On the ground

Also in the fight

11 more groups also work this ground

The situation

What’s happening to Sonoran Desert

Nearly half a million acres of saguaro forests, ancient desert pavement, and wide-open Sonoran landscape under assault from every direction. Livestock grazing is devastating arid landscapes across the monument while BLM expands target shooting areas following NRA litigation, threatening resources and Indigenous sites. Solar farms, subdivisions, and border walls close in from the edges. A last stand for the flat-tailed horned lizard and a corridor for jaguars returning from Mexico, if the corridor survives.

  1. 2001Designated as national monument
  2. 2025Development pressure intensifies around monument boundaries
  3. 2026BLM expands target shooting areas following NRA litigation
Livestock grazing devastating arid monument landscapes

Source: Western Watersheds Project · March 31, 2026

BLM expanding target shooting throughout monument

Source: Western Watersheds Project · March 31, 2026

Development pressure from multiple directions

Source: National Parks Traveler · January 15, 2025

No public comment window is open on Sonoran Desert 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.

In the courts

The cases over this place

The dockets we track that name Sonoran Desert directly. Active first.

WonMountain States Legal Foundation v. BushD.C. Circuit · filed 2002 · Docket ↗

Your move

How to stand for the Sonoran Desert

Sonoran Desert has defenders. It needs more.

4 groups on the record, Western Watersheds Project with 18 staff. That is who is holding it. Find your way in.

Sources and methodThe situation, timeline, and threats: the MTJP threatened-lands record for Sonoran Desert, with per-item sources. Court cases: CourtListener dockets in the MTJP litigation database (1 naming this place). 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.