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USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.
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Pu‘u ‘Ō‘ō Crater annotated map Pu‘u ‘Ō‘ō Crater annotated map
This map shows Pu‘u ‘Ō‘ō Crater on Kīlauea Volcano's East Rift Zone on November 22, with labels of the crater's main features.
Thermal map of flow field Thermal map of flow field
Thermal map over the Episode 61g lava flow.
Map of flow field Map of flow field
This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.
Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas
The Edwards and Trinity aquifers are major sources of water in south-central Texas and are both classified as major aquifers by the State of Texas. The population in Hays and Comal Counties is rapidly growing, increasing demands on the area’s water resources. To help effectively manage the water resources in the area, refined maps and descriptions of the geologic structures and...
Lidar-revised geologic map of the Des Moines 7.5' quadrangle, King County, Washington Lidar-revised geologic map of the Des Moines 7.5' quadrangle, King County, Washington
This map is an interpretation of a modern lidar digital elevation model combined with the geology depicted on the Geologic Map of the Des Moines 7.5' Quadrangle, King County, Washington (Booth and Waldron, 2004). Booth and Waldron described, interpreted, and located the geology on the 1:24,000-scale topographic map of the Des Moines 7.5' quadrangle. The base map that they used was...
Map of flow field Map of flow field
This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.
Thermal map of flow field Thermal map of flow field
Thermal map over the Episode 61g lava flow.
Map of flow field Map of flow field
This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.
Lava inundation zone maps for Mauna Loa, Island of Hawaiʻi, Hawaii Lava inundation zone maps for Mauna Loa, Island of Hawaiʻi, Hawaii
Lava flows from Mauna Loa volcano, on the Island of Hawaiʻi, constitute a significant hazard to people and property. This report addresses those lava flow hazards, mapping 18 potential lava inundation zones on the island.
Concentration and trend of 1,4-dioxane in wells sampled during 2002–2017 in the vicinity of the Tucson International Airport Area Superfund Site, Arizona Concentration and trend of 1,4-dioxane in wells sampled during 2002–2017 in the vicinity of the Tucson International Airport Area Superfund Site, Arizona
Industrial activities causing extensive groundwater contamination led to the listing of the Tucson International Airport Area (TIAA) as a Superfund Site in 1983. Early groundwater investigations identified volatile organic compounds (VOCs), including the chlorinated solvents trichloroethylene (TCE) and perchloroethylene (PCE), in wells in the area. Several responsible parties were...
Thermal map of flow field Thermal map of flow field
Thermal map over the Episode 61g lava flow.
Map of flow field Map of flow field
This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.