Missouri River

Montanans are being told to eat less fish in some areas of the state. A new report from the Montana Department of Environmental Quality says high levels of PFAS are present in fish in the Fort Peck Reservoir, the East Gallatin River, the Missouri and the Clark Fork, among other locations.

Heavy rain and high flows on the Flathead River are putting a damper on the early summer season for rafting and fishing guides near Glacier National Park. Some business owners are finding alternatives.

Conservation groups want a Montana court to cancel the approval of the long-disputed Black Butte copper mine, saying it would pollute a tributary of the…

BILLINGS, Mont. (AP) — The Trump administration on Wednesday approved a right-of-way allowing the Keystone XL oil sands pipeline to be built across U.S.…

Although many people associate these stone-like animals with the crystalline waters of the tropics, several species of sponges do occur in lakes and ponds…

The bottom of this shallow stream is covered with a complex community of algae, comprising many different species. Probably most abundant of all are the…

It’s summer in Montana. The sun is bright and the Missouri River has never looked more refreshing. As I hike along a well-worn trail, I see two gorgeous…

A federal judge in Great Falls on Wednesday ordered the U.S. Department of State to update its environmental assessment of the proposed Keystone XL…

GREAT FALLS, Mont. (AP) — The Latest on Montana flooding (all times local): 2 p.m.The Montana Army National Guard and the U.S. Air Force are evacuating…

GREAT FALLS, Mont. (AP) — The National Weather Service issued a flood warning for the Missouri River between Cascade and Great Falls on Wednesday, leading…