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Geologic Formations
State of Maryland —
This file of geologic unit polygons is for educational use. There are known errors and omissions. The file is part of a recompilation of the 1968 Geologic Map of... -
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Middle Styx electromagnetic, magnetic, and radiometric airborne geophysical survey data compilation
State of Alaska —
The Middle Styx geophysical survey is located about 150 kilometers northwest of Anchorage, Alaska in the upper South Fork of the Kuskokwim River drainage and south of... -
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Littoral Drift Maps
State of Maryland —
The shoreline and littoral conditions maps were produced in 1982 as part of a study of shore erosion in the northern Chesapeake Bay, that is, the Maryland part of the... -
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Surficial Geologic Map of the Stowe Quadrangle, Vermont
Vermont Center for Geographic Information —
Maps at a scale of 1:24,000 are used to identify surficial geologic materials and resources, to identify and evaluate physical hazards, and to evaluate groundwater... -
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2022 Arctic Strategic Transportation and Resources project (ASTAR) field station location data and descriptions: Utqiagvik region (Barrow triangle), North Slope, Alaska
State of Alaska —
2022 Arctic Strategic Transportation and Resources project (ASTAR) field station location data and descriptions: Utqiagvik region (Barrow triangle), North Slope,... -
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Geologic map of the Kavik River area, northeastern Brooks Range, Alaska
State of Alaska —
Report of Investigation 2011-3A, Geologic map of the Kavik River area, northeastern Brooks Range, Alaska, presents 1:63,360-scale geologic mapping of the Mt.... -
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Reconnaissance geologic map of the Nome C-2 Quadrangle, Seward Peninsula, Alaska
State of Alaska —
Open-File Report 72-321, Reconnaissance geologic map of the Nome C-2 Quadrangle, Seward Peninsula, Alaska, provides (1:63,360-scale) geologic mapping of parts of the... -
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High-resolution lidar data from the west Susitna area, Southcentral, Alaska
State of Alaska —
The Alaska Division of Geological & Geophysical Surveys used airborne lidar to produce a digital terrain model (DTM) and digital surface model (DSM) for the west... -
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Conserved Areas Explorer
State of California —
California Nature Conserved Areas Explorer The Conserved Areas Explorer is a web application enabling users to investigate a synthesis of the best available data... -
State
Mineral assessment of the Lime Peak-Mt. Prindle area, Alaska
State of Alaska —
Miscellaneous Publication 29, Mineral assessment of the Lime Peak-Mt. Prindle area, Alaska, presents 1:63,360-scale, reconnaissance bedrock and surficial geologic... -
State
Tsunami inundation maps for Akhiok, Chiniak, Old Harbor, Ouzinkie, and Port Lions on Kodiak Island, Alaska
State of Alaska —
Report of Investigation 2021-6, Tsunami inundation maps for Akhiok, Chiniak, Old Harbor, Ouzinkie, and Port Lions on Kodiak Island, Alaska, evaluates potential... -
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Thin section analysis of samples from the Haines-Takshanuk Mountains-Chilkat Peninsula area STATEMAP project, Southeast Alaska, collected 2022 and 2023
State of Alaska —
Thin section analysis of samples from the Haines-Takshanuk Mountains-Chilkat Peninsula area STATEMAP project, Southeast Alaska, collected 2022 and 2023, Raw Data File... -
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Lidar-derived elevation data for Ketchikan, Southeast Alaska, collected August 29, 2024
State of Alaska —
Lidar-derived elevation data for Ketchikan, Southeast Alaska, collected August 29, 2024, Raw Data File 2024-31, releases classified point cloud derived from aerial... -
State
Regional tsunami hazard assessment for the communities of Kasaan, Klawock, Metlakatla, Pelican, Point Baker, and Port Protection in Southeast Alaska
State of Alaska —
We assess potential tsunami hazards for six communities in Southeast Alaska: Kasaan, Klawock, Metlakatla, Pelican, Point Baker, and Port Protection. These communities... -
State
Debris flow hazard evaluations for multi-hazard risk mapping in Sitka, Alaska
State of Alaska —
Debris flow hazard evaluations for multi-hazard risk mapping in Sitka, Alaska, Report of Investigation 2024-2, provides digital data used to develop interpretive maps... -
State
Potential maximum permanent flooding, Port Valdez, Alaska
State of Alaska —
This digital data distribution package provides post-earthquake shorelines for coastal areas near Port Valdez, Alaska that become permanently flooded due to coseismic... -
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DWR's Basin Characterization Program
State of California —
DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of California’s Groundwater (Bulletin 118). California's Groundwater... -
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Updated tsunami inundation maps for Homer and Seldovia, Alaska
State of Alaska —
We re-evaluate the potential tsunami hazard for the communities of Homer and Seldovia by numerically modeling the extent of inundation from tsunami waves generated by... -
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Geothermal Resources of Alaska
State of Alaska —
Between 1979 and 1982, the Alaska Division of Geological & Geophysical Surveys (DGGS) and the Geophysical Institute, University of Alaska Fairbanks, undertook an...