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Data

Below is a list of current Data Resources available from NOROCK. If you are in search of specific resources, please email twojtowicz@usgs.gov.

Filter Total Items: 145

Environmental DNA robotic and manual sampling data, Yellowstone and Snake Rivers, 2017-2019 Environmental DNA robotic and manual sampling data, Yellowstone and Snake Rivers, 2017-2019

Environmental DNA detection results from samples collected using autonomous water sampling robots and manual approaches. Samples were collected in the Upper Yellowstone River (Montana) and Upper Snake River (Idaho/Wyoming) in 2018 and 2019. Samples were tested for the DNA of the following species: the waterborne protozoa Naegleria spp., the fish pathogen Tetracapsuloides bryosalmonae...

PCR results from dreissenid mussel round robin assay analyses, 2018-2019 PCR results from dreissenid mussel round robin assay analyses, 2018-2019

Real-time PCR results of a round robin evaluation of 5 assays that target dreissenid mussel DNA. Water samples collected from waters with and without dreissenid mussels were analyzed using these five assays in four USGS laboratories. Samples from waters without dreissenid mussels were spiked with known amounts of dreissend DNA.

Avalanche occurrence records along the Going-to-the-Sun Road, Glacier National Park, Montana from 2003-2024 (ver. 4.0, November 2024) Avalanche occurrence records along the Going-to-the-Sun Road, Glacier National Park, Montana from 2003-2024 (ver. 4.0, November 2024)

Starting in 2003, the U.S. Geological Survey (USGS) Northern Rocky Mountain Science Center in West Glacier, MT, in collaboration with the National Park Service, collected avalanche observations along the Going to the Sun Road during the spring road-clearing operations. The spring road-clearing along Going to the Sun Road utilized a team of avalanche specialists from the USGS and Glacier...

Tree ring dataset for a regional avalanche chronology in northwest Montana, 1636-2017 Tree ring dataset for a regional avalanche chronology in northwest Montana, 1636-2017

This dataset includes processed tree ring data from avalanche paths in Glacier National Park and the Flathead National Forest in northwest Montana. The data were processed in three distinct phases that resulted in this dataset: collection, processing, and avalanche signal analysis. This dataset consists of samples from 647 trees with 2304 growth disturbances identified from 12 avalanche...

Glacier National Park alpine aquatic invertebrates, 2011-2013 Glacier National Park alpine aquatic invertebrates, 2011-2013

This data release incorporates high-resolution geospatial and biological data and accompanies a peer-reviewed manuscript "Specialized meltwater biodiversity persists despite widespread deglaciation". In this study, we tested the prediction that glacier retreat reduces biodiversity in mountain ecosystems through the loss of uniquely adapted meltwater stream species in Glacier National...

Soil sample locations for chronic wasting disease prion surveillance in Grand Teton National Park and National Elk Refuge 2019 Soil sample locations for chronic wasting disease prion surveillance in Grand Teton National Park and National Elk Refuge 2019

A total of 200 soil samples were collected in the Greater Yellowstone Ecosystem in Grand Teton National Park and the National Elk Refuge in July 2019 for chronic wasting disease (CWD) monitoring purposes. To collect samples from locations where ungulates are most likely to be shedding or encountering CWD, we targeted elk collar data locations, known migration routes of mule deer and elk...

Microsatellite data for American bullfrogs in the Yellowstone River Montana, 2013-2017 Microsatellite data for American bullfrogs in the Yellowstone River Montana, 2013-2017

We used 7 microsatellites to characterize the invasion genetics of 528 American bullfrogs sampled from the Yellowstone River floodplain (Montana). American bullfrog samples were collected from a 140 km section of the Yellowstone River near Billings, MT in 2013 - 2017.

Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011 Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011

Between 2004 and 2011 bighorn sheep were darted in Glacier National Park and in Dinosaur National Monument. Blood was drawn. These are the genotypes resulting from an Ovine HD array from the bighorns. The first 3 columns refers to bighorn sheep identifiers: 'Herd_Unit', 'IndID', and 'AgencyID'. IndID is the identifier assigned at Montana State University. Subsequent columns each...

A comprehensive inventory of perennial snow and ice in Glacier National Park in 2005 A comprehensive inventory of perennial snow and ice in Glacier National Park in 2005

These polygon features represent a comprehensive inventory of perennial snow and ice on the landscape in Glacier National Park (GNP) in 2005. The imagery used to delineate perennial snow and ice was taken late season, therefore, all snow and ice present on the landscape is assumed to be perennial. Whether each polygon is "perennial snow and ice" or "active glacial ice" is included...

Detection histories of grizzly bears in Grand Teton National Park, 2014-2015 Detection histories of grizzly bears in Grand Teton National Park, 2014-2015

This dataset contains detection histories of grizzly bears in areas of Grand Teton National Park that are open for elk harvest as part of the Elk Reduction Program. Sampling followed a robust design analysis with 6 primary sampling periods of 4 weekly secondary sampling periods each during 2014-2015. In both years, primary sampling periods were in July-August (no elk hunt), September...

A network of 31 Upper Missouri River Basin naturalized water-year (Oct-Sep) streamflow reconstructions spanning years 800 - 1998 CE A network of 31 Upper Missouri River Basin naturalized water-year (Oct-Sep) streamflow reconstructions spanning years 800 - 1998 CE

Paleohydrologic records provide a valuable perspective on the variability of streamflow and hydroclimate that is critical for water resource planning and placing present day and future conditions into a long-term context. Until now, key insights gained from streamflow reconstructions in the other river basins across the Western U.S. been lacking in the Upper Missouri River Basin due to a...

Water quality data from the Goose Lake Study Site Eastern Montana 1989-2018 Water quality data from the Goose Lake Study Site Eastern Montana 1989-2018

The data set contains temporal chloride concentrations (mg/L) and specific conductance (uS/cm) values for 32 wetlands and groundwater monitoring wells as well as the date(s) sampled and the laboratory where the water quality analyses were conducted. The ratio of chloride concentration to specific conductance is referred to as the Contamination Index. In this region, values greater than 0...
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