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Example rock outcrop in the Sour Creek dome area of Yellowstone National Park. The area is challenging to work in owing to occasionally boggy ground and abundant deadfall and dense lodgepole pine forests. Photo by Madison Myers, Montana State University, August 9, 2023.
Example rock outcrop in the Sour Creek dome area of Yellowstone National Park. The area is challenging to work in owing to occasionally boggy ground and abundant deadfall and dense lodgepole pine forests. Photo by Madison Myers, Montana State University, August 9, 2023.
Pouring sulfate-resistant cement for one of the bridge footers after a drill hole has been completed. The existing bridge can be seen through the trees on the left side of the picture.
Pouring sulfate-resistant cement for one of the bridge footers after a drill hole has been completed. The existing bridge can be seen through the trees on the left side of the picture.
Drilling for the new Yellowstone River Bridge near Tower Junction. A small, yellow, personal 4-gas safety monitor can be seen on the upper left breast pocket on the person in the far right of the picture. Photo by Ken Sims (University of Wyoming), August 3, 2023.
Drilling for the new Yellowstone River Bridge near Tower Junction. A small, yellow, personal 4-gas safety monitor can be seen on the upper left breast pocket on the person in the far right of the picture. Photo by Ken Sims (University of Wyoming), August 3, 2023.
Wyoming StreamStats includes data on land use, land cover, soils, climate, elevation, and streamflow statistics and prediction equations.
Wyoming StreamStats includes data on land use, land cover, soils, climate, elevation, and streamflow statistics and prediction equations.
Wyoming StreamStats basin delineation at Green River below Fontenelle Reservoir
Wyoming StreamStats basin delineation at Green River below Fontenelle Reservoir
This site was burned but not invaded by exotic annual grasses. Many perennial bunchgrasses were present before the fire and were able to recover quickly afterwards.
This site was burned but not invaded by exotic annual grasses. Many perennial bunchgrasses were present before the fire and were able to recover quickly afterwards.
Cheatgrass has invaded the space between sagebrush shrubs on this landscape south of Rock Springs in Wyoming.
Cheatgrass has invaded the space between sagebrush shrubs on this landscape south of Rock Springs in Wyoming.
This landscape south of Rock Springs, Wyoming was burned and subsequently invaded by cheatgrass. Cheatgrass has a short growing season and leaves behind mats of dry, dead material that serves as wildfire fuel--contributing to a cycle of more frequent and larger wildfires and more plant invasions.
This landscape south of Rock Springs, Wyoming was burned and subsequently invaded by cheatgrass. Cheatgrass has a short growing season and leaves behind mats of dry, dead material that serves as wildfire fuel--contributing to a cycle of more frequent and larger wildfires and more plant invasions.
This site south of Rock Springs in Wyoming was not burned but cheatgrass has invaded the space between sagebrush shrubs.
This site south of Rock Springs in Wyoming was not burned but cheatgrass has invaded the space between sagebrush shrubs.
Map of Norris Geyser Basin showing the locations of major subbasins, roads and trails, and Nuphar Lake.
Map of Norris Geyser Basin showing the locations of major subbasins, roads and trails, and Nuphar Lake.
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 (left), WorldView-3 on July 7, 2016 (middle), and WorldView-3 on March 30, 2022 (right). Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow f
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 (left), WorldView-3 on July 7, 2016 (middle), and WorldView-3 on March 30, 2022 (right). Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow f
Schematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020.
Schematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020.
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 and WorldView-3 on March 30, 2022. Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow from thermal features on the east side of Porcelain Bas
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 and WorldView-3 on March 30, 2022. Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow from thermal features on the east side of Porcelain Bas
Map of Yellowstone region showing the backbone (triangles) and dense 2020 (yellow squares) seismic networks, and based on Wu et al. (2023).
Map of Yellowstone region showing the backbone (triangles) and dense 2020 (yellow squares) seismic networks, and based on Wu et al. (2023).
Four examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM. The vertical scale is the same for each seismogram.
Four examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM. The vertical scale is the same for each seismogram.
Comparison between the velocity structures outlining the Yellowstone’s upper-crustal magma reservoir at 5 km (3 mi) depth based on sparse (left) and dense (right) seismic networks. The open squares denote the locations of seismic sensors. Warmer color indicates lower velocity, representing higher melt fraction within the medium.
Comparison between the velocity structures outlining the Yellowstone’s upper-crustal magma reservoir at 5 km (3 mi) depth based on sparse (left) and dense (right) seismic networks. The open squares denote the locations of seismic sensors. Warmer color indicates lower velocity, representing higher melt fraction within the medium.
Visible (top) and thermal (bottom) images of Porcelain Basin looking to the north from the old roadbed. Nuphar Lake is off the photograph to the right. Cool-water seeps into Porcelain Basin are clearly evident in the thermal image and appear to flow underground from Nuphar Lake. USGS photos by Mike Poland, July 1, 2023.
Visible (top) and thermal (bottom) images of Porcelain Basin looking to the north from the old roadbed. Nuphar Lake is off the photograph to the right. Cool-water seeps into Porcelain Basin are clearly evident in the thermal image and appear to flow underground from Nuphar Lake. USGS photos by Mike Poland, July 1, 2023.
This site south of Rock Springs in Wyoming represents an intact sagebrush ecosystem. It has not been burned or invaded by exotic annual grasses. Undisturbed sagebrush steppe has bare ground between shrubs which helps to limit the spread of wildfire. When cheatgrass invades fires can grow larger.
This site south of Rock Springs in Wyoming represents an intact sagebrush ecosystem. It has not been burned or invaded by exotic annual grasses. Undisturbed sagebrush steppe has bare ground between shrubs which helps to limit the spread of wildfire. When cheatgrass invades fires can grow larger.
View of Palisades Reservoir, on the Idaho-Wyoming border. This waterbody was included in a state-wide effort to validate satellite remote sensing of water quality.
View of Palisades Reservoir, on the Idaho-Wyoming border. This waterbody was included in a state-wide effort to validate satellite remote sensing of water quality.
Map of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, showing selected thermal features, including new and reactivated features that were active during the May-June 2023 thermal unrest. Map prepared by by Kiernan Folz-Donahue, Yellowstone National Park.
Map of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, showing selected thermal features, including new and reactivated features that were active during the May-June 2023 thermal unrest. Map prepared by by Kiernan Folz-Donahue, Yellowstone National Park.
Hydrothermal explosion crater that has existed since at least 1954 located just southwest of The Gap in Norris Geyser Basin, Yellowstone National Park. Photo taken in June 2023 by Lauren Harrison.
Hydrothermal explosion crater that has existed since at least 1954 located just southwest of The Gap in Norris Geyser Basin, Yellowstone National Park. Photo taken in June 2023 by Lauren Harrison.