Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Volcanic vents from Plate 1 and Plate 2 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN><SPAN>Sample locations from Plate 1 and Plate 2 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Attitude measurement locations (strike and dip) </SPAN><SPAN>from Plate 1 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Outlines of calderas associated with the Yellowstone Plateau Volcanic Field.</SPAN></P><P><SPAN>This is a layer that was derived from the geology coverages of Plate 1, Plate 2, and Plate 3 in the Christiansen (2001) Professional Paper. LTYPE is original value from the coverages.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Lava flow form lines from Plate 1 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN>Hydrothermal alteration zones </SPAN><SPAN>from Plate 1 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Geologic lines from Plate 1 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Geologic units from Plate 1 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Geologic lines from Plate 2 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Geologic units from Plate 2 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Geologic lines from Plate 3 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></SPAN></P></DIV></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Geologic units from Plate 3 of U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001).</SPAN></P><P><SPAN>This digital publication contains all the geologic map information used to publish U.S. Geological Survey Professional Paper 729-G (Christiansen, 2001). The superlative hot springs, geysers, and fumarole fields of Yellowstone National Park are vivid reminders of a recent volcanic past. Volcanism on an immense scale largely shaped the unique landscape of central and western Yellowstone Park, and intimately related tectonism and seismicity continue even now. Furthermore, the volcanism that gave rise to Yellowstone's hydrothermal displays was only part of a long history of late Cenozoic eruptions in southern and eastern Idaho, northwestern Wyoming, and southwestern Montana. The late Cenozoic volcanism of Yellowstone National Park, although long believed to have occurred in late Tertiary time, is now known to have been of latest Pliocene and Pleistocene age. The eruptions formed a complex plateau of voluminous rhyolitic ash-flow tuffs and lavas, but basaltic lavas too have erupted intermittently around the margins of the rhyolite plateau. Volcanism almost certainly will recur in the Yellowstone National Park region.</SPAN></P><P><SPAN>Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. The WSGS has not formally reviewed or quality-controlled these data; users are encouraged to consult the original data source.</SPAN></P></DIV></DIV>
Service Item Id: 90167a4ddc1548109bd2c3b14a171d61
Copyright Text: The database was compiled mainly in 1995-2000 from original geologic mapping by Robert L. Christiansen (Christiansen, 2001). Richard D. Koch and David W. Ramsey provided the GIS-expertise to bring the database and metadata to completion.
Koch, R.D., Ramsey, D.W., and Christiansen, R.L., 2011, Database for the Quaternary and Pliocene Yellowstone Plateau volcanic field of Wyoming, Idaho, and Montana: U.S. Geological Survey Data Series 551, https://pubs.usgs.gov/ds/551/.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none