Unified Interior Regions

Grizzly bears in the southern portion of the Northern Continental Divide Ecosystem experienced a rapid increase in genetic diversity, according to a new study led by the USGS.

Bull trout populations are lower, more variable, and declining where stream habitat is limited, invasive species and land-use (i.e., roads) are prevalent, and stream temperatures are highest, according to a new study led by the USGS.

New Center Director to sustain NOROCK’s tradition of productivity and partnership in generating ground-breaking science relevant to resource managers in the Northern Rocky Mountains and beyond.

Bozeman - A new U.S. Geological Survey study illustrates the usefulness of genetic approaches to track invasive bullfrog introductions. Results will inform management actions for identifying and controlling importation and secondary spread of invasive bullfrogs in Montana.  

MISSOULA – Gravel-bed river floodplains are some of the most ecologically important habitats in North America, according to a new study by scientists from the U.S. and Canada. Their research shows how broad valleys coming out of glaciated mountains provide highly productive and important habitat for a large diversity of aquatic, avian and terrestrial species.

First-of-its-kind survey shows that algal toxins are found nationwide

The U.S. Geological Survey and its partners have shown how brucellosis has impacted cattle, bison and elk in the greater Yellowstone area.

During winter, wolves infected with mange can suffer a substantial amount of heat loss compared to those without the disease, according to a study by the U.S. Geological Survey and its partners.

Do you want to be part of an innovative team of biological science professionals committed to providing reliable scientific information and understanding of ecosystems?  Scientists, field technicians, and science support staff at NOROCK work in some of the most beautiful places in the U.S. answering some of the most critical research questions in natural resource and environmental science.

A new approach to ranking copper resources could result in identifying future supplies of copper while saving both time and money, according to the U.S. Geological Survey.

CORVALLIS, Ore. — Ecosystem restoration is complex and requires an understanding of how the land, plants, and animals all interact with each other over large areas and over time. Today, the U.S. Geological Survey published part two of a three-part handbook addressing restoration of sagebrush ecosystems from the landscape to the site level.