Montana

High levels of selenium, released when coal is mined and washed during processing, can be toxic to fish, aquatic insects and the birds that feed on them

Democrats raised a range of concerns, including questions about enforceability and whether the government — rather than parents — should be responsible for limiting children’s access to social media

The rejection of the conservation groups’ petitions allows state-sanctioned wolf hunts to continue in Idaho, Montana and Wyoming

In the mid-1800s, federal soldiers carried out two massacres, killing hundreds, at Bahsahwahbee in retaliation for alleged attacks on settlers and their property

Prosecutors described Marc Bru as one of the least remorseful rioters who assaulted the Capitol on Jan. 6, 2021. They said Bru planned for an armed insurrection to take over the government in Portland

Republican candidates campaigning ahead of Monday’s Iowa caucuses were contending with a blizzard warning covering most of the state

The Mississippi Capitol and courthouses in Arkansas and Montana were evacuated following threats that disrupted government affairs for the second day in a row

Connecticut, Georgia, Kentucky, Michigan, Mississippi and Montana were among the states that evacuated their capitols

The proposal would sharply limit commercial timber harvests in old-growth forests while allowing logging to continue in ‘mature forests’ that have not yet reached old-growth stage

The western state can proceed with its plan to find, capture and transport up to 10 wolves from Oregon starting Sunday

The most ambitious wolf reintroduction effort in the U.S. in almost three decades marks a sharp departure from aggressive efforts by Republican-led states to cull wolf packs

Tour flights will essentially be banned from getting within a half mile of Mount Rushmore and Badlands National Park starting in April

Protections for the species were rejected under former President Donald Trump. The Biden administration released a proposal to protect them

The $500 million in grants came from last year’s CHIPS and Science Act to stimulate investments in new technologies such as artificial intelligence, quantum computing and biotech

Programs to reintroduce locally extinct species are increasingly taking into account the behavior of the individuals being released

The governors of Arizona and Utah vowed to keep some of the most iconic parks, including the Grand Canyon and Zion, open with state funding

The preliminary injunction remains in effect until a full trial can be held on the issue, but the state Department of Justice said it will appeal the injunction

The 10-square-mile (25-square-kilometer) oil and gas lease in the mountainous Badger-Two Medicine area of northwestern Montana was issued in 1982 but has not been developed

District Court Judge Kathy Seeley ruled that young people in the state have a constitutional right to a clean and healthful environment

The attack happened Saturday morning only a few hundred yards from a trailhead and private campground

A bridge over the river collapsed as a train crossed it early on June 24 near the town of Columbus and 10 cars fell into the water

Seven train cars carrying hot asphalt and molten sulfur fell into the rushing river Saturday morning near the town of Columbus

The train cars were carrying asphalt and sulfur, said David Stamey, Stillwater County’s chief of emergency services. Officials shut down drinking water intakes downstream while they evaluated the dange

The 16 plaintiffs range in age from 5 to 22 years old. They say they’re being harmed by wildfire smoke, excessive heat and other effects of climate change

A first-of-its kind trial in Montana will decide if the constitutional right to a healthy, livable climate is protected by state law

The law’s effects would be more far-reaching than bans already in place in nearly half the states and the U.S. federal government that prohibit use of the app on government devices