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Wyoming-Montana Water Science Center

Welcome to the USGS Wyoming-Montana Water Science Center, your source for water-resource data and information.

News

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USGS provides easy access to Colorado River science with new online portal

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Tailored sediment sampling can lead to more effective management

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USGS scientists with the Wyoming Landscape Conservation Initiative lead field tour to share science outcomes with partners and stakeholders.

Publications

Growth of coal mining operations in the Elk River Valley (Canada) linked to increasing solute transport of Se, NO3-, and SO42- into the transboundary Koocanusa Reservoir (USA-Canada)

Koocanusa Reservoir (KOC) is a waterbody that spans the United States (U.S.) and Canadian border. Increasing concentrations of total selenium (Se), nitrate + nitrite (NO3–, nitrite is insignificant or not present), and sulfate (SO42–) in KOC and downstream in the Kootenai River (Kootenay River in Canada) are tied to expanding coal mining operations in the Elk River Watershed, Canada. Using a paire
Authors
Meryl Biesiot Storb, Ashley Morgan Bussell, Sara L. Caldwell Eldridge, Robert M. Hirsch, Travis S. Schmidt

Development of a Surface-Water Index of Permanence to assess surface-water availability for ecohydrological refugia

Surface-water availability has major implications for the environment and society in the 21st century. With climate change, increased drought severity, and altered water and land use, future water availability is predicted to continue to decline in many areas, including much of the western United States. An understanding of where and when water will be available at multiple scales is crucial for t
Authors
Alynn Martin, Roy Sando, Lindsey Thurman, Kyle McLean, Patrick Wurster, John Jones, Anteneh Sarbanes

Predicting water quality in the Clark Fork near Grant-Kohrs Ranch National Historic Site, southwestern Montana

The U.S. Geological Survey (USGS) provides a wide range of streamflow, groundwater, and water-quality data to Government, commercial, academic, and public users. The USGS has a record of success with using optical turbidity sensors to predict suspended-sediment concentrations in rivers and streams. Turbidity sensors collect backscatter signals from suspended particles in water, which can be accura
Authors
Christopher A. Ellison

Science

Water-Quality and Fish Tissue Data from Boneau and Williamson Reservoirs, Chippewa Cree Tribe Rocky Boy's Reservation, Box Elder, Montana, May - September 2022

Water and fish tissue were sampled in Boneau and Williamson reservoirs, Rocky Boy's Reservation, near Box Elder, Montana. The sampling was part of a program funded by the U.S. Environmental Protection Agency. Sampling was completed by the U.S. Geological Survey in cooperation with the Chippewa Cree Tribe, to characterize background water quality and mercury in fish tissue within the tribal lands.
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Water-Quality and Fish Tissue Data from Boneau and Williamson Reservoirs, Chippewa Cree Tribe Rocky Boy's Reservation, Box Elder, Montana, May - September 2022

Water and fish tissue were sampled in Boneau and Williamson reservoirs, Rocky Boy's Reservation, near Box Elder, Montana. The sampling was part of a program funded by the U.S. Environmental Protection Agency. Sampling was completed by the U.S. Geological Survey in cooperation with the Chippewa Cree Tribe, to characterize background water quality and mercury in fish tissue within the tribal lands.
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Kootenai River Basin Dissolved Selenium Data

Water-quality sampling for selenium in the Lake Koocanusa Basin has been occurring since 1972. The USGS WY-MT WSC began a sampling program on the lake in 2018. Water-quality data are collected on the inflows to Lake Koocanusa, in the lake itself, and on the Kootenai River downstream of Libby Dam. All data are available online. Data in graphs are updated monthly to present the latest results. All...
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Kootenai River Basin Dissolved Selenium Data

Water-quality sampling for selenium in the Lake Koocanusa Basin has been occurring since 1972. The USGS WY-MT WSC began a sampling program on the lake in 2018. Water-quality data are collected on the inflows to Lake Koocanusa, in the lake itself, and on the Kootenai River downstream of Libby Dam. All data are available online. Data in graphs are updated monthly to present the latest results. All...
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Selected Water-Quality Regulation Resources for the Koocanusa Watershed in the United States and Canada

The United States, Canada, the States of Montana and Idaho, and Province of British Columbia all have different regulatory levels for the selenium, nitrate, and sulfate that affect the rivers and lakes in the Kootenei Basin. Links to those entities’ web pages describing the different regulations are provided to help provide perspective to the results of this study.
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Selected Water-Quality Regulation Resources for the Koocanusa Watershed in the United States and Canada

The United States, Canada, the States of Montana and Idaho, and Province of British Columbia all have different regulatory levels for the selenium, nitrate, and sulfate that affect the rivers and lakes in the Kootenei Basin. Links to those entities’ web pages describing the different regulations are provided to help provide perspective to the results of this study.
Learn More