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A wolf in the Firehole area of Yellowstone National Park.
(Jim Peaco / National Park Service)
From the Experts March 17, 2022

A New Vision for Wolf Conservation After 150 Years of Yellowstone

Emergency protections are needed for the gray wolf after the Northern Rockies sees the worst persecution of wolves in a century.

Silver-tipped Grizzly 399, a Yellowstone grizzly bear, surveys a meadow, looking for potential dangers for her three young cubs.
(Thomas D. Mangelsen)
Press Release: Victory July 8, 2020

9th Circuit Upholds Endangered Species Protections for Yellowstone Grizzlies

Court of appeals sends U.S. Fish and Wildlife Service back to the drawing board

Un oso pardo de Yellowstone merodea un prado para evitar peligros potenciales para sus tres cachorros.
(THOMAS D. MANGELSEN)
Press Release: Victory July 8, 2020

Tribunal Protege a Osos Grizzlies de Yellowstone Mediante Ley de Especies en Peligro de Extinción

El tribunal de apelaciones envía de regreso su fallo al Servicio de Pesca y Vida Silvestre de los Estados Unidos

Silver-tipped grizzly 399 surveys a sage-filled meadow looking for potential dangers for her three young cubs in Grand Teton National Park, Wyoming, June 20, 2011.
(Photo courtesy of Thomas D. Mangelsen.)
Press Release August 30, 2017

Groups Challenge Decision to Remove Yellowstone Grizzly Protections

Delisting defies best available science, sidesteps important legal safeguards

Emigrant Peak rises above the Paradise Valley and the Yellowstone River.
(Matthew Brown / AP)
Article December 9, 2020

Montana Supreme Court Deals Final Blow to Mining Plan Near Yellowstone

A giant gold mining project proposal near Yellowstone National Park is officially dead, and Montanans’ right to stop such unlawful projects is upheld, with far-reaching impacts.

A juvenile grizzly stands in a summer wildflower field in Yellowstone National Park.
(Photo courtesy of Tom Murphy)
Press Release January 8, 2018

Tribal, Conservation Groups Urge Court to Restore Endangered Species Protections for Yellowstone Grizzlies

Trophy hunting looms, absent federal protections

First light strikes the summit of Mount Moran, painting the sky orange as a female grizzly wades a shallow bend in the Snake River in Grand Teton National Park, Wyoming. (Photo courtesy of Thomas D. Mangelsen)
feature July 8, 2020

“A Lens Into Their Lives”: The Grizzlies of the Greater Yellowstone Ecosystem

The iconic grizzly bears of the Greater Yellowstone Ecosystem still exist because of the Endangered Species Act. But the law that has helped the bears survive is itself now in danger. Legendary photographer Thomas D. Mangelsen shares his photos and observations of matriarch Grizzly 399.

Grizzly 610 walks down a park road with her three cubs in springtime, April 13, 2012.
(Photo courtesy of Thomas D. Mangelsen)
Press Release: Victory September 24, 2018

Grizzlies Saved: Court Stops Trophy Hunt of Yellowstone’s Iconic Bears

Judge rules Trump administration unlawfully removed federal protections

Grizzly bears. Federal biologists acknowledge that population growth of the Yellowstone grizzly bear has flattened over the past decade.
(Photo courtesy of Tom Murphy)
Press Release June 29, 2017

Groups Challenge Decision to Remove Protections for Yellowstone Grizzly

Delisting defies the best available science and sidesteps important legal safeguards

Yellowstone National Park.
(Photo courtesy of Brook Ward)
Press Release April 25, 2017

Don’t Mine Yellowstone: Senator Jon Tester Introduces Legislation to Protect the Doorstep to the World’s First National Park

The legislation protects private property rights while enacting a permanent withdrawal on the public lands

The front lawn of the world famous, locally-owned, Chico Hot Springs Resort. Emigrant Peak rises in background.
(Photo courtesy of William Campbell)
Press Release: Victory December 9, 2020

Montana Supreme Court Rejects Lucky Mineral’s Last Bid to Mine Near Yellowstone

Court further unanimously declares loophole in law favoring mining industry is unconstitutional

Near the northern entrance of Yellowstone National Park. Emigrant Peak and the Emigrant Gulch proposed mining area lies behind the locally-owned, world famous Chico Hot Springs Resort. There are mine claims on both sides of the gulch on both private and public land. (Photo by William Campbell / Aerial flight by Bruce Gordon / Ecoflight)
Press Release: Victory April 16, 2019

Court Affirms Yellowstone More Valuable than Gold, Blocks Mining Exploration

Lucky Minerals’ exploration license ruled invalid, taking plans for exploratory drilling “off the table”

Grizzly 610 walks down a park road with her three cubs in springtime, April 13, 2012.
(Photo courtesy of Thomas D. Mangelsen)
Press Release May 25, 2018

Earthjustice Responds to Wyoming’s Vote to Open Hunt of Yellowstone Grizzlies

Court decision pending on removal of protections for iconic and imperiled bears

Emigrant Gulch aerial view looking east from Emigrant Peak. (Photo courtesy of William Campbell)
Press Release: Victory May 29, 2018

Court Rules Montana Illegally Approved Gold Exploration License Near Yellowstone

Montana Department of Environmental Quality must complete more extensive environmental review of Lucky Minerals’ drilling plan

Emigrant Gulch aerial view looking east from Emigrant Peak. (Photo courtesy of William Campbell)
Press Release November 21, 2016

U.S. Departments of Agriculture and Interior Prevent Gold Mining on More than 30,000 Acres Near Yellowstone National Park

The proposal places slated gold exploration on public lands on time-out

Bison are a keystone species, creating a cascade of environmental conditions that benefit countless other wildlife. As bison graze, they prune and encourage growth of native grasses, fertilize the soils, and carve out habitat for smaller creatures. The Northern Rockies office has protected bison and their iconic prairie ecosystem for decades. (Ami Vitale for Earthjustice)
feature August 7, 2023

Northern Rockies

Highlights of how Earthjustice’s Northern Rockies office has leveraged the power of partnership and the law to defend communities, sacred lands and wildlife, and clean air and water.

A grizzly bear in Yellowstone National Park.
(National Park Service)
video August 29, 2018

Defending Yellowstone’s Grizzly Bears: Inside the Case

Tim Preso, Earthjustice's lead attorney on the lawsuit challenging the government's illegal decision to strip Yellowstone's grizzly bears of Endangered Species Act protections, explains what's at stake.

The front lawn of the world famous, locally-owned, Chico Hot Springs Resort. Emigrant Peak rises in background.
(Photo courtesy of William Campbell)
case September 22, 2017

Defending Yellowstone National Park from Industrial Gold Mining

Groups opposed to industrial gold mining north of Yellowstone National Park filed a lawsuit on September 22, 2017, challenging the Montana Department of Environmental Quality’s approval of extensive mineral exploration in Emigrant Gulch near Park County’s Paradise Valley. The exploration is proposed by Lucky Minerals, a Canadian company whose intention is to develop “a multi-million…