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Database for the Geologic Map of the Bonanza Caldera Area, Northeastern San Juan Mountains, Colorado The San Juan Mountains in southwestern Colorado have long been recognized as a site of exceptionally voluminous mid-Tertiary volcanism, including at least 24 major ignimbrite sheets (each 150-5,000 km3) and associated caldera structures active at 33-23 Ma. More recent volcanologic and petrologic studies in the San Juan region have focused mainly on several ignimbrite-caldera systems: the southeastern area (Platoro complex), western calderas (Uncompahgre-Silverton-Lake City), the central cluster (La Garita-Creede calderas). The northeast San Juan region that was far less studied until recently occupies a transition between earlier volcanism in central Colorado and the larger-volume younger ignimbrite-caldera foci... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bonanza, Colorado, North America, Saguache, USGS Science Data Catalog (SDC), All tags... United States, Volcanology, caldera, explosive eruptions, geology, geology, volcanoes, Fewer tags Database for the Geologic Map of Three Sisters Volcanic Cluster, Cascade Range, Oregon A database of geologic map of Three Sisters Volcanic Cluster as described in the original abstract: The geologic map represents part of a late Quaternary volcanic field within which scores of eruptions have taken place over the last 50,000 years, some as recently as ~1,500 years ago. No rocks of early Pleistocene (or greater) age crop out within the map area, although volcanic and derivative sedimentary rocks of Miocene and Pliocene age are widespread to the east and west and are certainly buried beneath the younger volcanic field. Of the 145 volcanic map units described herein, only 22 are certainly older than late Pleistocene (>126 ka), and 12 are postglacial (<15 ka). The oldest unit identified yields an age... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Andesite, Basalt, Basaltic andesite, Bend, Oregon, Dacite, All tags... Geochemistry, Geomorphology, Geophysics, Oregon, Rhyodacite, Rhyolite, Sisters, Oregon, Three Sisters Volcanic Cluster, Three Sisters Volcanic Cluster, USGS Science Data Catalog (SDC), United States of America, Volcanology, biota, debris avalanche, lava flows, Fewer tags Conceptual marsh units of Chesapeake Bay salt marshes This data release contains coastal wetland synthesis products for Chesapeake Bay. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and tidal range are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing federal, state, and local managers with tools to estimate the vulnerability and ecosystem service potential of these wetlands. For this purpose, the response and resilience of coastal wetlands to physical factors... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Chesapeake Bay, Maryland, North Carolina, United States, Virginia, All tags... coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Geologic map database to accompany geologic map of the State of Hawaii This digital publication contains all the geologic map information used to publish U.S. Geological Survey Geologic Investigations Map Series SIM-3143 (Sherrod and others, 2021). This geologic map shows the distribution and stratigraphic relation of volcanic, intrusive, and sedimentary units emplaced in the past 8 million years across the eight principal islands of the Hawaiian archipelago, State of Hawaii, U.S.A. This geologic map database is accompanied by a report, which includes the formatted geologic map and explanatory pamphlet, available at https://doi.org/10.3133/sim3143​. The authors ask that users of the geologic map database cite both the report and the database: Report: Sherrod, D.R., Sinton, J.M.,... Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Hana, Hawaii, Honolulu, Kahoolawe, Kauai County, All tags... Lanai, Maui, Molokai, Niihau, Oahu, USGS Science Data Catalog (SDC), United States, Volcanology, Wailuku, faults, geologic maps, geology, geoscientificInformation, volcanoes, Fewer tags Database for the Geologic Map of Lower Geyser Basin, Yellowstone National Park, Wyoming This data release contains digital GIS files digitized from 'Geologic map of Lower Geyser Basin, Yellowstone National Park, Wyoming' by L.J.P. Muffler, D.E. White, A.H. Truesdell, and R.O. Fournier, Miscellaneous Investigations Series Map I-1373. Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Geyser, Hot spring, Hydrothermal Deposits, Lower Geyser Basin, Spring, All tags... USGS Science Data Catalog (SDC), Volcanology, Wyoming, Yellowstone National Park, Yellowstone National Park, Fewer tags Database for the Geologic Map of the Lassen Peak, Chaos Crags, and Upper Hat Creek Area, California This is a database of the geologic map of the Lassen Peak, Chaos Crags, and Upper Hat Creek volcanic area as described in the original abstract: The Lassen Peak, Chaos Crags, and Upper Hat Creek map area lies near the southern end of the Cascade Range in northern California. The map area includes parts of the three elements that together form the Lassen volcanic center: the Lassen dacitic dome field, the Central Plateau andesitic lava field, and the underlying deeply eroded and partly altered Brokeoff andesitic stratocone. The Lassen volcanic center is the southernmost active long-lived center of the present-day Cascades volcanic arc. This geologic map contributes to understanding the youngest major volcanic events... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Andesite, Basalt, California, Chaos Crags, Dacite, All tags... Lassen Peak, Lassen Peak, Lassen volcanic center, Mafic andesite, Rhyodacite, Rhyolite, USGS Science Data Catalog (SDC), United States of America, Upper Hat Creek Area, Volcano, debris avalanche, inlandWaters, lava flows, Fewer tags Elevation of salt marsh units in Edwin B. Forsythe National Wildlife Refuge, New Jersey Elevation distribution in the Edwin B. Forsythe National Wildlife Refuge (EBFNWR), which spans over Great Bay, Little Egg Harbor, and Barnegat Bay in New Jersey, USA is given in terms of mean elevation of conceptual marsh units defined by Defne and Ganju (2016). The elevation data is based on the 1-meter resampled 1/9 arc-second resolution USGS National Elevation Data. As part of the Hurricane Sandy Science Plan, the U.S. Geological Survey is expanding National Assessment of Coastal Change Hazards and forecast products to coastal wetlands. The intent is to provide federal, state, and local managers with tools to estimate their vulnerability and ecosystem service potential. For this purpose, the response and resilience... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Atlantic Ocean, Barnegat Bay, Barnegat bay, Edwin B. Forsythe National Wildlife Refuge, Environmental Health, All tags... Great Bay, Hydrogeology, Little Egg Island, Marine Geology, New Jersey, New Jersey, United States, Water Quality, Water Resources, coastal ecosystems, coastal processes, elevation, environment, estuary, inlandWaters, marsh health, oceans, salt marsh, shoreline change, vegetation, wetland ecosystems, wetland functions, Fewer tags Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano, describing its interpreted eruptive history. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alamagan Island, Andesite, Intermediate volcanic rock, Lava flow, NMI_Alamagan, All tags... Northern Islands, Northern Mariana Islands, Pacific, Pacific Islands, Pyroclastic rock, USGS Science Data Catalog (SDC), United States, Volcanic rock, Volcanology, geologic maps, volcanic activity, Fewer tags Database for the geologic map of the northern Harrat Rahat volcanic field, Kingdom of Saudi Arabia The Harrat Rahat volcanic field, located in the west-central part of the Kingdom of Saudi Arabia, is the largest of 15 harrats (Arabic for 'volcanic field') hosted within the Arabian plate. Harrat Rahat is 50 to 75 km wide (east-west) and 300 km long (north-south), covering an area of approximately 20,000 square kilometers and encompassing more than 900 observable vents. The overall map area and its dataset show the volcanic geology of the northern part (about 3,340 square kilometers) of Harrat Rahat, at a scale of 1:75,000. Two additional map areas and their feature classes highlight areas of interest at 1:25,000 scale. Northern Harrat Rahat is of interest owing to the location of the city of Al-Madinah Al-Munawarah... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Al-Madinah Al-Munawarah, Basalt, Benmoreite, Harrat Rahat volcanic field, Lava flow, All tags... Mugearite, Saudi Arabia, Trachyte, USGS Science Data Catalog (SDC), geology, geoscientificInformation, volcanic activity, Fewer tags Inventory of landslides in the northwestern, northeastern, southern, and southeastern parts of Minnesota This dataset contains an inventory of landslides in many of the most landslide-prone parts of Minnesota. This project was created to improve our understanding of the landslide hazard in Minnesota and to provide a nearly statewide base map of landslide data. The mapping was performed by geologists from the U.S. Geological Survey, the Freshwater Society, and several academic institutions where undergraduate students, graduate students and faculty performed mapping. Contributing academic institution include the University of Minnesota Duluth, the University of Minnesota Twin Cities, the University of Wisconsin-Superior, Gustavus Adolphus College, Winona State University, Minnesota State University, Mankato, St. Thomas... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Geomorphology, Minnesota, Remote Sensing, USGS Science Data Catalog (SDC), Water Quality, All tags... elevation, Fewer tags Web Services--Punta Gorda to Point Arena, California This ArcMap document (.mxd) has all the data layers loaded in the table of contents for the Punta Gorda to Point Arena map region of northern California, and has all the data symbolized as on the map sheets included in the accompanying USGS Open-File report (doi: 10.3133/ofr20191072). Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: stratigraphic thickness Raster and mapping data indicating landscape change from the June 2012 storm in the Duluth, MN region The GeoTiff raster data were created from subtraction of elevation values collected in 2012 from elevation values collected in 2011. Both data collections were conducted by airborne lidar surveys contracted by the Minnesota Department of Natural Resources. These survey occured before and after a historical rain event that cause widespread landscape change. The shapefiles are polygon objects that illustrate where erosion and deposition occurred on slopes and in valleys in the June 2012 rain event in the Duluth, MN region Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Duluth, Geomorphology, Remote Sensing, USGS Science Data Catalog (SDC), elevation Database for the geologic map of the central San Juan caldera cluster, southwestern Colorado This geodatabase contains all the geologic map information for the Geologic Map of the San Juan caldera cluster, southwestern Colorado and is part of U.S. Geological Survey Geologic Investigations Map Series I-2799. The San Juan Mountains are the largest erosional remnant of a composite volcanic field that covered much of the southern Rocky Mountains in middle Tertiary time. The San Juan field consists mainly of intermediate-composition lavas and breccias, erupted about 35-30 Ma from scattered central volcanoes (Conejos Formation) and overlain by voluminous ash-flow sheets erupted from caldera sources. In the central San Juan Mountains, eruption of at least 8,800 km3 of dacitic-rhyolitic magma as nine major ash... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Andesite, Ash-flow tuff, Basalt, Central San Juan Caldera Cluster, Central San Juan Mountains, All tags... Colorado, Geochemistry, Gunnison, Lava flow, Pyroclastic rock, Rhyolite, San Juan, Tuff, USGS Science Data Catalog (SDC), United States, Volcanic breccia, Volcanology, Welded tuff, caldera, faulting (geologic), faulting (geologic), geoscientificInformation, volcanic activity, volcanic activity, volcanic eruptions, volcanic features, volcanic rocks, volcanic rocks, volcanology, volcanology, Fewer tags California volcano locations, threat rank and hazard zones The California volcano locations, threat rank and hazard zones data release contains two shapefiles for download or use as a web map service. The California Volcanic Center Locations shapefile was created to provide a generalized location of volcano hazard sources. The California Volcano Hazard Zones shapefile was created from previously published hazard zone reports. Specific details about each file can be found in the metadata included with each file and the read-me document for this data release. Together, these files were used to define California Volcano Hazards for the GIS analysis that supports conclusions in the California's exposure to volcano hazards report. Geologists produce hazard zone maps to convey... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alpine County, Ash, Ballistic, Butte County, California, All tags... Clear Lake volcanic field, Fresno County, Imperial County, Inyo County, Klamath National Forest, Lahar, Lake County, Lassen County, Lassen National Forest, Lassen Peak, Lassen Volcanic Center, Lassen Volcanic National Park, Lava, Lava Beds National Monument, Lava dome, Lava flow, Long Valley volcanic region, Madera County, Mariposa County, Medicine Lake volcano, Modoc County, Modoc National Forest, Mono County, Mount Shasta, Plumas County, Plumas National Forest, Pyroclastic flow, Salton Buttes, Shasta County, Shasta-Trinity National Forest, Siskiyou County, Tehama County, Tephra, Trinity County, Tuolumne County, USGS Science Data Catalog (SDC), Ubehebe Craters, Vent, Volcanic flood, flowage-hazard zones, hazards, tephra-hazard zones, volcanic activity, volcanic eruption prediction, volcanic eruptions, volcanic rocks, volcanic vents, volcano hazards, volcanology, Fewer tags Database for the geologic map of Lassen Volcanic National Park and vicinity, California This is a database of the geologic map of Lassen Volcanic National Park (LVNP) and vicinity as described below: The geologic map of Lassen Volcanic National Park (LVNP) and vicinity encompasses 1,905 square kilometers at the south end of the Cascade Range in Shasta, Lassen, Tehama, and Plumas Counties, northeastern California. Most of the map area is underlain by middle to late Pleistocene volcanic rocks; Holocene, early Pleistocene, and late Pliocene volcanic rocks (<3.5 m.y.) are less common. The southernmost Cascade Range consists of a regional platform of basalt and basaltic andesite, with subordinate andesite and sparse dacite, erupted from small, relatively short-lived volcanoes. Nested within these regional... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Lassen Volcanic Center; volcanoes, USGS Science Data Catalog (SDC), Volcanology Database for the Geologic Map of Pocket Basin, Yellowstone National Park, Wyoming This digital publication describes completely the hydrothermal, sedimentary, and volcanic deposits, as well as thermal features as a basis for understanding the hydrothermal processes and explosions in Pocket Basin, Yellowstone National Park, Wyoming at 1:2,400 scale. Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Lower Geyser Basin, USGS Science Data Catalog (SDC), United States of America, Volcanology, Wyoming, All tags... Yellowstone, geology, hydrothermal explosion craters, hydrothermal processes, volcanoes, Fewer tags