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Northern Rocky Mountain Science Center

Welcome to the Northern Rocky Mountain Science Center (NOROCK), one of the nation’s key laboratories to study the ecosystems and species of the Northern Rockies. Since 2000, our scientists have tackled critical issues that matter to natural resource managers and the American people. 

News

Environmental DNA monitoring leads to early detection of invasive zebra mussel DNA in the Colorado River, Utah

Environmental DNA monitoring leads to early detection of invasive zebra mussel DNA in the Colorado River, Utah

Predicting chronic wasting disease spread in North American deer and understanding the role of deer movement

Predicting chronic wasting disease spread in North American deer and understanding the role of deer movement

IGBST Public Notifications and Resources

IGBST Public Notifications and Resources

Publications

Tracking water in snow: Bridging sensor and and model simulations Tracking water in snow: Bridging sensor and and model simulations

Forecasting wet slab avalanches remains one of the most demanding challenges in operational avalanche forecasting. A key obstacle is the difficulty of observing and quantifying liquid water content (LWC) and tracking its infiltration into the snowpack. Field measurements are labor-intensive, highly variable in space, and often influenced by user application or sensor design — making them
Authors
Andrea Bruckmeier, Christoph Mitterer, Robyn Gotz, Eric Sproles, Erich Peitzsch

Stability changes after weak layer collapse: Insights from an unexpected dataset Stability changes after weak layer collapse: Insights from an unexpected dataset

While conducting avalanche mitigation or traveling through the backcountry, avalanche professionals sometimes experience a "whumpf": a collapse-mode crack accompanied by surface cracking that does not produce an avalanche. These whumpfs are a clear warning sign of instability in the surrounding terrain. But assessing the collapsed slope itself, if it is steep enough to avalanche, carries...
Authors
Andrea Bruckmeier, Erika Hart Birkeland, Ron Simenhois, Alex Marienthal, Erich Peitzsch, Karl W. Birkeland

Establishing conservation benchmarks for threatened Bull Trout using spawner-recruitment relationships Establishing conservation benchmarks for threatened Bull Trout using spawner-recruitment relationships

Understanding the relationship between breeding adults and juvenile recruitment is fundamental to conserving at-risk species. Knowing whether recruitment is depensatory or compensatory at low adult abundances can aid in developing conservation strategies and recovery goals. However, this relationship requires long-term monitoring of two life stages, which can be costly and uncommon...
Authors
Hayley Corrine Glassic, Robert Al-Chokhachy, Leo R. Rosenthal, Matthew C. Boyer, Thomas Weaver, Kristen L. Cook, David Schmetterling, Ryan P. Kovach, Clint C. Muhlfeld, Timothy Cline

Science

Gulkana Glacier

Gulkana Glacier is located in the high-latitude continental climate regime of Alaska’s Delta Mountains. Glacier observations began at this site in 1966 and continue through present as the northern most USGS Benchmark Glacier.
Gulkana Glacier

Gulkana Glacier

Gulkana Glacier is located in the high-latitude continental climate regime of Alaska’s Delta Mountains. Glacier observations began at this site in 1966 and continue through present as the northern most USGS Benchmark Glacier.
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Glaciers and Landscape Change

Mountain glaciers are dynamic reservoirs of frozen water, deeply interconnected with their surrounding ecosystems. Glacier change in North America has major societal impacts, including to water resources, natural hazard risk, tourism disruption, fisheries, and global sea level change. Understanding and quantifying precise connections between changing glaciers, the surrounding landscape and climate...
Glaciers and Landscape Change

Glaciers and Landscape Change

Mountain glaciers are dynamic reservoirs of frozen water, deeply interconnected with their surrounding ecosystems. Glacier change in North America has major societal impacts, including to water resources, natural hazard risk, tourism disruption, fisheries, and global sea level change. Understanding and quantifying precise connections between changing glaciers, the surrounding landscape and climate...
Learn More

Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West and are economically important as big game species on some public lands and as tourist attractions in and around national parks. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather...
Bighorn Sheep and Mountain Goat Research in Western National Park Units

Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West and are economically important as big game species on some public lands and as tourist attractions in and around national parks. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather...
Learn More
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