Stand · Find your defenders

Who’s defending Craters of the Moon?

10 groups have it in their care

National monument in Idaho, 753,890 acres, managed by the National Park Service and the Bureau of Land Management, designated in 1924.

The defenders

The groups doing the most work here

2 groups are on the record for Craters of the Moon, 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

Grassroots · Boise, ID

Idaho Conservation League

85–90% match

Mobilized Idahoans to file Interior Department comments defending Craters of the Moon during the 2017 national monument review, arguing shrinkage would damage the economies of Blaine, Butte, Minidoka, and Power counties.

37 staff + 343 volunteers74¢ of every dollar to the workFounded 1973

Meet them Give directly

Legal · Hailey, ID

Western Watersheds Project

84–89% match

Its 2008 lawsuit produced the U.S. District Court of Idaho order requiring BLM to analyze no-grazing and reduced-grazing alternatives for the monument’s BLM lands, and it later litigated sage-grouse protections covering the Craters plan.

18 staff85¢ of every dollar to the workFounded 1993

Meet them Give directly

8 more groups also work this ground

On the ground in Idaho

Greater Hells Canyon CouncilIdaho is one of the 2 states they work inFriends Group Vital Ground FoundationIdaho is one of the 4 states they work inLand Trust Pacific Northwest Trail AssociationIdaho is one of the 3 states they work inTrails Cottonwood Environmental Law CenterIdaho is one of the 3 states they work inLegal Advocates for the WestBased in Boise, close to the groundLegal

More ways in

Continental Divide Trail CoalitionTheir work includes national parksTrails Western Values ProjectTheir work includes national parksWatchdog WildEarth GuardiansWorking this regionLegal

The situation

What’s happening to Craters of the Moon

So alien that NASA trained Apollo astronauts here. Over 750,000 acres of lava flows, cinder cones, and sagebrush steppe harbor species found nowhere else. Proposals to strip the expanded boundaries would hand this otherworldly landscape back to cattle and off-road vehicles.

1924Established as national monument
2000Expanded to protect surrounding lava fields
2025Expanded boundaries under review

Expanded boundaries under review

Source: Department of Interior · January 15, 2025

Grazing impacts on expanded monument lands

Source: BLM · January 1, 2025

No public comment window is open on Craters of the Moon 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 Craters of the Moon

GiveGive to Idaho Conservation League

Straight to their own donation page. Your dollar never passes through us.

Their donation page ↗SpeakCall your representatives

A ready call script on Craters of the Moon, plus any comment window as it opens.

Public Lands Action Network FollowWatch the map

Every threatened place in the country, tracked, with who stands for each.

Threatened Lands Map

Craters of the Moon has defenders. It needs more.

2 groups on the record, Idaho Conservation League with 37 staff + 343 volunteers. That is who is holding it. Find your way in.

Give to Idaho Conservation League ↗Every place, state and species

Sources and method

The situation, timeline, and threats: the MTJP threatened-lands record for Craters of the Moon, 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.