U.s. Geological Survey
A three-year study will begin this summer on Bighorn Reservoir to try to determine the source of high mercury levels in the lake’s fish.
Random testing of shallow groundwater in the Northern Plains oil patch found no early evidence of contamination from an energy boom that’s already seen more than 8,500 wells drilled, federal scientists said Monday.
KALISPELL — A moderate earthquake rattled parts of northern Montana, but authorities say there were no reports of injury or damage.
More grizzly bears are congregating each summer on steep rocky slopes in search of army cutworm moths in the southeastern portion of the more than 9,210-square-mile Greater Yellowstone Ecosystem.
Yearling grizzly bears released after conflicts with humans or livestock are not more likely to reoffend, according to a recent study by the U.S. Geological Survey.
Yearling grizzly bears busted for getting into trouble and relocated are not any more likely to offend again than bears with a clean rap sheet.
A low-flying helicopter will tow a strange-looking device over the Poplar River Valley this week to survey the geology of the area as part of a study.
Citizens should not be alarmed if they see a low-flying helicopter towing a large wire-loop contraption hanging from a cable in the Poplar area during the next couple of weeks.
The scope of groundwater contamination on the Fort Peck Reservation caused by oil exploration that began in the 1950s has been estimated at 15 to 37 billion gallons spread across 17.9 square miles, according to a recent study.
A newly published scientific report on the geology and hydrology in the area around Old Faithful in Yellowstone National Park includes suggestions on how to avoid harming the unique hydrothermal features during maintenance of nearby park roads, utilities and historic buildings.
The odds are against cottonwood seedlings that sprout along the Missouri River in the badlands of the Upper Missouri River Breaks National Monument.
Jeff Locker remembers the frustration, Jon Martin the elation.
The U.S. Geological Survey has released its extensive report on the greater sage grouse, a document that will provide a consistent set of information about the bird to help guide the Bureau of Land Management and the U.S. Forest Service in their joint efforts to conserve the species.
MISSOULA — River lovers relax: A planned shutdown of several federal streamflow gauges in Montana didn’t happen – despite warnings to the contrary.
The installation of powerful seismic sensors in Yellowstone National Park over the past four years to track the area’s sleeping volcano has incidentally provided insight into rhythmic wave events on Yellowstone Lake.
MAMMOTH HOT SPRINGS, Wyo. — In the ongoing deliberations over federal protections for Yellowstone-area grizzly bears, debate often focuses on a fixed number of total bears living in the region.
On Thursday afternoon, Kayla Nelson drove over the Yellowstone River at South Billings Boulevard.
Frozen shelves of ice and snow and iceberglike islands dot a stretch of the Yellowstone River just upstream of the bridge at South Billings Boulevard.