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Filters: Contacts: U.S. Geological Survey, NORTHWEST REGION (X)

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Nutrients, such as nitrogen and phosphorus, are essential for plant and animal growth and nourishment, but the overabundance of bioavailable nitrogen and phosphorus in water can cause adverse health and ecological effects. It is generally accepted that major increases in the primary production of surface-water bodies due to high inputs of nutrients is now the most important polluting effect in surface water in the developed world. The Fish Creek watershed is located along the southwestern margin of the city of Jackson Hole. Fish Creek is an important water body because it is used for irrigation, fishing, recreation, and adds scenic value to the Jackson Hole properties it flows through. Recent U.S. Geological Survey...
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Grizzly bear recovery zones were established by the U.S. Fish and Wildlife Service in 1993 to delineate regions in the lower 48 states that have sufficient habitat to target recovery for five, and possibly six remnant grizzly bear populations. Recovery zones represent the five known populations in the lower 48 United States including the Northern Continental Divide, Greater Yellowstone, Cabinet-Yaak, Selkirk, and North Cascade populations. The bitterroot ecosystem in Idaho represents the possible sixth population. The grizzly bear once ranged across a large portion of western North America from northern Mexico to Alaska and across much of Canada. Current distribution in the lower 48 United States is reduced to less...
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This dataset provides numbers of documented mortalities for independent aged ( ≥ 2-years-old) grizzly bears (Ursus arctos) from human and undetermined causes that occurred during 1998–2017 within 49-km2 (7- x 7-km) grid cells from the Greater Yellowstone (GYE) and Northern Continental Divide (NCDE) ecosystems of the western United States.
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This dataset is a compilation of data obtained from the Idaho Department of Water Quality, the Idaho Department of Water Resources, and the Water Quality Portal. The 'Samples' table stores information about individual groundwater samples, including what was being sampled, when it was sampled, the results of the sample, etc. This table is related to the 'MonitoringLocation' table (which contains information about the well being sampled).
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Aquatic invasive species are often transported between water bodies on boats or boat trailers, thus they are considered one of the primary vectors for new introductions of invasive species to a water body. This data set contains geographic positioning system locational data for boater access points, use data (i.e. recreational, fishing), water quality measurements (e.g. calcium concentrations, pH), risk assessment data, and other physical attributes (i.e. size, elevation) where available within the Columbia and Snake Rivers and throughout the Columbia River Basin. This work builds on an earlier body of work by Wells et al. 2011, Prioritizing Zebra and Quagga Mussel Monitoring in the Columbia River Basin (PDF link...
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The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2000-2014. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 2000 to 2014.
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The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2002-2016. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 2002 to 2016.
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This dataset describes the concentration and morphology of microplastics in the St. Croix National Scenic Riverway and Mississippi National River and Recreation Area, Wisconsin and Minnesota. Samples were collected during baseflow conditions at eight locations during the week of August 3-7, 2015. Four types of samples were collected: water surface, streambed sediment, smallmouth bass (Micropterus dolomieu), and threeridge mussels (Amblema plicata). Water surface samples were collected at all eight sites; other sample types were collected at only a subset of sites.
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This dataset consists of point features identifying indices for potential passage rate at intersections with major transportation corridors for grizzly bear movements between the Greater Yellowstone Ecosystem (GYE) and Northern Continental Divide Ecosystem (NCDE) in the northwestern United States. Points are spaced at 300-meter intervals along major road corridors (interstates and U.S. highways) and are populated with values from Randomized Shortest Path (RSP) predictive raster models of potential male grizzly bear movement between the two ecosystems as described in Peck et al. 2016 (Potential paths for male-mediated gene flow to and from an isolated grizzly bear population, Ecosphere 8(10):e01969). RSP scores extracted...
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The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 1990-2000. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 1990 to 2000.
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Groundwater is an important source of drinking and irrigation water throughout Idaho, and groundwater quality is monitored by various Federal, State, and local agencies. The historical, multi-agency records of groundwater quality include a valuable dataset that has yet to be compiled or analyzed on a statewide level. The purpose of this study is to combine groundwater-quality data from multiple sources into a single database, to summarize this dataset, and to perform bulk analyses to reveal spatial and temporal patterns of water quality throughout Idaho. Data were retrieved from the Water Quality Portal (www.waterqualitydata.us), the Idaho Department of Environmental Quality, and the Idaho Department of Water Resources....
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Spreadsheet used to calculated hydrograph recession statistical parameters (Minimum, Most Probable Value, and Maximum) for the Stochastic Empirical Loading Dilution Model (SELDM) . The spreadsheet was used in conjunction with the SELDM simulations used in the publication: Stonewall, A.J., and Granato, G.E., 2019, Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the Stochastic Empirical Loading and Dilution Model: U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053, and after using the Hydrograph.xlsx spreadsheet.
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Stochastic Empirical Loading and Dilution Model (SELDM) utilizes Microsoft Access databases to build and run model simulations. The compiled database was used for all simulations related to the publication: Stonewall, A.J., and Granato, G.E., 2019, Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the Stochastic Empirical Loading and Dilution Model: U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053
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Side channels are small channels located parallel to the main channel of river that have a surface connection to the river at the upstream and/or downstream end. Connectivity may depend on river stage. Side channels are an important type of off-channel habitat for rearing of juvenile salmon and spawning by adults.
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We analyzed detection/non-detection data from acoustic surveys of bat species in Colorado during the summers of 2016 and 2017. The goal of this analysis is to create species distribution maps estimating the probability of occupancy across the state for each species. We fit a community occupancy model using both years of data from all the available species. Spatially explicit covariates were included to explain heterogeneity in the probabilities of occupancy and nightly covariates were used to model detection. We also allowed for spatial patterns in the probability of occupancy for each species in order to account for the ranges of many species including only a portion of Colorado. This is also useful for explaining...
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Nutrients, such as nitrogen and phosphorus, are essential for plant and animal growth and nourishment, but the overabundance of bioavailable nitrogen and phosphorus in water can cause adverse health and ecological effects. It is generally accepted that major increases in the primary production of surface-water bodies due to high inputs of nutrients is now the most important polluting effect in surface water in the developed world. The Fish Creek watershed is located along the southwestern margin of the city of Jackson Hole. Fish Creek is an important water body because it is used for irrigation, fishing, recreation, and adds scenic value to the Jackson Hole properties it flows through. Recent U.S. Geological Survey...
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In this observational pilot study, we worked at the largest existing solar tower facility in the world (Ivanpah Solar Electric Generating System - ISEGS) to assess the efficacy of using radar, surveillance video, and insect trapping to monitor animals flying near the towers. During week-long site visits in May and September, we monitored the airspace surrounding towers and observed insects, occasional birds, and bats under a variety of environmental and operational conditions. This dataset is comprised of the unedited digital thermal samples we gathered during those site visits and consist of 1280x720 pixel arrayed infrared measures from a FLIR SC8340HD science-grade thermal (SGT) camera with a 200mm lens. The data...
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Nutrients, such as nitrogen and phosphorus, are essential for plant and animal growth and nourishment, but the overabundance of bioavailable nitrogen and phosphorus in water can cause adverse health and ecological effects. It is generally accepted that major increases in the primary production of surface-water bodies due to high inputs of nutrients is now the most important polluting effect in surface water in the developed world. The Fish Creek watershed is located along the southwestern margin of the city of Jackson Hole. Fish Creek is an important water body because it is used for irrigation, fishing, recreation, and adds scenic value to the Jackson Hole properties it flows through. Recent U.S. Geological Survey...
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This table summarizes the number of times samples from a location have exceeded an EPA-mandated maximum contaminant level (MCL) since 1990.
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The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 1973-1979. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 1973 to1979.


map background search result map search result map Boat ramp locations within the Columbia River Basin with associated recreational use, water quality measurements, and risk assessment data for zebra and quagga mussels Infrared (Thermal) Data Estimated Nitrogen and Phosphorus Input to Fish Creek Watershed, Teton County, Wyoming, 2009-15 Lower Cedar River Side Channels 2013 Data release for microplastics in water, sediment, fish, and mussels in the St. Croix National Scenic Riverway and Mississippi National River and Recreation Area, Wisconsin and Minnesota, 2015 Estimated Phosphorus Input to Fish Creek Watershed, Teton County, Wyoming Estimated Nitrogen Input to Fish Creek Watershed, Teton County, Wyoming Distribution of the Yellowstone Grizzly Bear (1973-1979) Distribution of the Yellowstone Grizzly Bear (1990-2000) Distribution of the Yellowstone Grizzly Bear (2000-2014) Distribution of the Yellowstone Grizzly Bear (2002-2016) Compiled Database and Results of the Analysis of Multiple Groundwater-Quality Datasets for Idaho Grizzly Bear Recovery Zones in the Lower 48 United States Analyte maximum contaminant level (MCL) exceedances in Idaho groundwater samples collected from 1990 to 2016 Idaho Groundwater Quality Dataset [Relational Database Table: Samples] Grizzly bear mortalities in the Greater Yellowstone and Northern Continental Divide Ecosystems, 1998-2017 Potential grizzly bear passage along major road corridors in northwest Montana Stochastic Empirical Loading and Dilution Model in MS Access Excel spreadsheet used for calculating hydrograph recession parameter statistics used in the Stochastic Empirical Loading Dilution Model Bat Occupancy Model Predictions for Colorado, acoustic data from 2016-2017 Infrared (Thermal) Data Lower Cedar River Side Channels 2013 Estimated Nitrogen and Phosphorus Input to Fish Creek Watershed, Teton County, Wyoming, 2009-15 Estimated Phosphorus Input to Fish Creek Watershed, Teton County, Wyoming Estimated Nitrogen Input to Fish Creek Watershed, Teton County, Wyoming Data release for microplastics in water, sediment, fish, and mussels in the St. Croix National Scenic Riverway and Mississippi National River and Recreation Area, Wisconsin and Minnesota, 2015 Distribution of the Yellowstone Grizzly Bear (1973-1979) Distribution of the Yellowstone Grizzly Bear (1990-2000) Distribution of the Yellowstone Grizzly Bear (2000-2014) Distribution of the Yellowstone Grizzly Bear (2002-2016) Potential grizzly bear passage along major road corridors in northwest Montana Bat Occupancy Model Predictions for Colorado, acoustic data from 2016-2017 Stochastic Empirical Loading and Dilution Model in MS Access Excel spreadsheet used for calculating hydrograph recession parameter statistics used in the Stochastic Empirical Loading Dilution Model Compiled Database and Results of the Analysis of Multiple Groundwater-Quality Datasets for Idaho Analyte maximum contaminant level (MCL) exceedances in Idaho groundwater samples collected from 1990 to 2016 Idaho Groundwater Quality Dataset [Relational Database Table: Samples] Grizzly Bear Recovery Zones in the Lower 48 United States Grizzly bear mortalities in the Greater Yellowstone and Northern Continental Divide Ecosystems, 1998-2017 Boat ramp locations within the Columbia River Basin with associated recreational use, water quality measurements, and risk assessment data for zebra and quagga mussels