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A freight train that plunged into the Yellowstone River in Montana when a bridge collapsed early Saturday apparently spilled hot asphalt and molten sulfur into the rushing water. Three rail cars ...

STILLWATER COUNTY, Mont. -- Cleanup is continuing at the site where a train carrying potentially hazardous materials derailed into the Yellowstone River in Montana, according to officials. The ...

In this photo provided by Yellowstone River Research Center, Rocky Mountain College Environmental Science summer research student Josephine Eccher examines a mat of petroleum products more than 10 ...

A bridge in Montana collapsed overnight and caused an oncoming train to plunge into the Yellowstone River. The train was carrying hazardous materials such as hot asphalt and molten sulfur. Preliminary ...

Last June, flooding in and around Yellowstone National Park upended the lives of nearby residents, damaging homes, ranch properties, and roads. It also damaged boat ramps and fishing access sites, and ...

Stillwater County Sheriff's Office warns of a dangerous new hazard at the Yellowstone River's railroad bridge near Indian ...

A year ago, the Yellowstone River had its biggest flood in 500 years. Now, fishing guides have to learn a whole new river. Fishing sends more than $1 billion to Montana's economy. It's been a year ...

Montana’s cutthroat trout are on the decline, but fisheries biologists are developing plans to preserve the species, especially those that still migrate through the streams of western Montana.

Brain-eating amoebas are thriving in Yellowstone and Grand Teton national parks, and they’re probably more widespread than ...