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Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands 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...
Genetic species identification of larval Coregonines from Chaumont Bay (New York), Lake Ontario Genetic species identification of larval Coregonines from Chaumont Bay (New York), Lake Ontario
Location, occurrence, collection information, and genetic species identification data in support of an analysis of the spatial separation of Lake Whitefish and Cisco larvae in Chaumont Bay, Lake Ontario, the last known spawning area of both species in American waters of Lake Ontario. Genetic species identification of larval coregonines collected between April 2004 and 2015 is provided...
Avalanche occurrence records along the Going-to-the-Sun Road, Glacier National Park, Montana (ver. 5.0, March 2026) Avalanche occurrence records along the Going-to-the-Sun Road, Glacier National Park, Montana (ver. 5.0, March 2026)
Starting in 2003, the U.S. Geological Survey (USGS) Northern Rocky Mountain Science Center in West Glacier, MT, in collaboration with the National Park Service, collected avalanche observations along the Going to the Sun Road during the spring road-clearing operations. The spring road-clearing along Going to the Sun Road utilized a team of avalanche specialists from the USGS and Glacier...
Contributing zones of the San Antonio, Barton Springs, and Northern segments of the Edwards Aquifer Contributing zones of the San Antonio, Barton Springs, and Northern segments of the Edwards Aquifer
The Edwards aquifer is a karst aquifer system that is a primary water source for a large part of central Texas including the city of San Antonio, Texas. These vector geospatial data represent the geographic extent of the contributing zones for the Northern, Barton Springs, and San Antonio segments of the Edwards aquifer. The contributing zone is defined as the drainage area of the...
Cross-Section Geometry and Sediment-Size Data from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, western Colorado, 2019 Cross-Section Geometry and Sediment-Size Data from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, western Colorado, 2019
This dataset contains cross-section geometry and sediment-size data collected in the fall of 2019 from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, western Colorado. Six cross sections were surveyed using Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) methods to document channel geometry below Paonia Reservoir. One cross section was surveyed on...
GeoNatShapes: a natural feature reference dataset for mapping and AI training GeoNatShapes: a natural feature reference dataset for mapping and AI training
These data were compiled for the use of training natural feature machine learning (GeoAI) detection and delineation. The natural feature classes include the Geographic Names Information System (GNIS) feature types Basins, Bays, Bends, Craters, Gaps, Guts, Islands, Lakes, Ridges and Valleys, and are an areal representation of those GNIS point features. Features were produced using heads...