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Federal
Data release for the geologic map of the upper Arkansas River valley region, north-central Colorado
Department of the Interior —
This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida,... -
State
Geologic map of the West Susitna area, parts of the Tyonek C-3, C-4, D-4, and D-5 quadrangles, Alaska
State of Alaska —
Geologic map of the West Susitna area, parts of the Tyonek C-3, C-4, D-4, and D-5 quadrangles, Alaska, Preliminary Interpretive Report 2026-1, prevents surficial and... -
State
The central Kuskokwim region, Alaska
State of Alaska —
The central Kuskokwim region, Alaska, Professional Paper 268, synthesizes the geology, ecology, and mineral resources of Alaska's central Kuskokwim region. Located... -
State
Geologic map of the Big Delta A-4 Quadrangle, Alaska
State of Alaska —
This map illustrates extents and types of unconsolidated deposits and bedrock in the Big Delta A-4 Quadrangle, Alaska. This map is based on field observations begun... -
State
Quaternary Geology LIS Deltaic Deposits
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Geologic map of the Mount Edgecumbe volcanic field, Kruzof Island, southeastern Alaska
State of Alaska —
Geologic map of the Mount Edgecumbe volcanic field, Kruzof Island, southeastern Alaska, Miscellaneous Investigations Series Map 1983, provides 1:63,360 geologic... -
State
Geologic map of the Kanayut River area, Chandler Lake Quadrangle, Alaska
State of Alaska —
Geologic map of the Kanayut River area, Chandler Lake Quadrangle, Alaska, Preliminary Interpretive Report 2009-7, presents 1:63,360-scale geologic mapping of the... -
State
Surficial geology of the Tyonek area, south-central Tyonek Quadrangle, Alaska
State of Alaska —
The Tyonek area in the northwestern Cook Inlet trough is rich in petroleum, coal, geothermal, aggregate, and timber resources, but the detailed geologic mapping... -
State
Geologic map of the Iditarod D-2 and eastern D-3 quadrangles, Alaska
State of Alaska —
Geologic map of the Iditarod D-2 and eastern D-3 quadrangles, Alaska, Geologic Report 72, provides 1:63,360-scale geologic mapping of the Beaver Mountains and the... -
State
Geology and geologic hazards in the Whittier area, Southcentral Alaska
State of Alaska —
Geology and geologic hazards in the Whittier area, Southcentral Alaska, Preliminary Interpretive Report 2024-10, presents mapping of surficial and bedrock geology and... -
State
Quaternary Geology LIS Lake Deposits
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Geologic map of the Styx River area, Lime Hills C-1 Quadrangle, Western Alaska Range, Alaska
State of Alaska —
Report of Investigation 2020-3, Geologic map of the Styx River area, Lime Hills C-1 Quadrangle, Western Alaska Range, Alaska, presents a 1:63,360-scale geologic map... -
State
Geologic map of the Iditarod C-3 Quadrangle, Alaska
State of Alaska —
Geologic map of the Iditarod C-3 Quadrangle, Alaska, Professional Report 96, provides 1:63,360 geologic mapping of the Iditarod C-3 Quadrangle. The Iditarod C-3... -
State
Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska
State of Alaska —
Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska, Preliminary Interpretive Report 2015-6, presents 1:50,000 scale geologic... -
State
Quaternary Geology LIS Channel-Fill Deposits
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Geology of the Cobblestone Creek-May Creek area, east-central Brooks Range Foothills, Alaska
State of Alaska —
Geology of the Cobblestone Creek-May Creek area, east-central Brooks Range Foothills, Alaska, Preliminary Interpretive Report 2009-5, presents a 1:63,360 scale... -
State
Surficial-geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska
State of Alaska —
Surficial-geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska, Report of Investigation 2011-4, shows the distribution of unconsolidated... -
State
Quaternary Geology LIS End Moraine
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Stratigraphic and electron microprobe data for Holocene tephra from Makushin Volcano, Alaska, and for interbedded tephra from other volcanoes located among or near the islands of the eastern Aleutians
State of Alaska —
Stratigraphic and electron microprobe data for Holocene tephra from Makushin Volcano, Alaska, and for interbedded tephra from other volcanoes located among or near...