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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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December 22, 2020—Kīlauea summit eruption thermal map December 22, 2020—Kīlauea summit eruption thermal map
December 22, 2020—Kīlauea summit eruption thermal map constructed from aerial imagery
December 22, 2020—Kīlauea summit eruption lava lake depth map December 22, 2020—Kīlauea summit eruption lava lake depth map
Kīlauea summit eruption lava lake depth map generated from December 22, 2020 imagery
Bedrock geologic map of the Springfield 7.5- x 15-minute quadrangle, Windsor County, Vermont, and Sullivan County, New Hampshire Bedrock geologic map of the Springfield 7.5- x 15-minute quadrangle, Windsor County, Vermont, and Sullivan County, New Hampshire
The bedrock geology of the 7.5- by 15-minute Springfield quadrangle consists of highly deformed and metamorphosed Mesoproterozoic through Devonian metasedimentary and meta-igneous rocks. In the west, Mesoproterozoic gneisses of the Mount Holly Complex are the oldest rocks and form the eastern side of the Chester dome. The Moretown slice structurally overlies the Chester dome along the...
December 21, 2020—Kīlauea summit eruption reference map December 21, 2020—Kīlauea summit eruption reference map
Kīlauea summit eruption reference map showing the location of current and previous lake activity
December 21, 2020—Kīlauea summit interferogram December 21, 2020—Kīlauea summit interferogram
This “interferogram” was created from satellite radar data acquired over Kīlauea Volcano on December 6 and 21 (at 6 PM HST each day). The colored fringes show ground deformation that occurred during that 15-day period. Each fringe is equivalent to about 1.55 cm (0.6 in) of ground deformation towards or away from the satellite.
December 21, 2020—Kīlauea summit eruption lava lake depth map December 21, 2020—Kīlauea summit eruption lava lake depth map
Kīlauea summit eruption lava lake depth map generated from December 21, 2020 imagery
December 21, 2020—Kīlauea summit eruption thermal map December 21, 2020—Kīlauea summit eruption thermal map
December 21, 2020—Kīlauea summit eruption thermal map constructed from aerial imagery
Bathymetric map, surface area, and capacity of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2019 Bathymetric map, surface area, and capacity of Grand Lake O’ the Cherokees, northeastern Oklahoma, 2019
The U.S. Geological Survey (USGS), in cooperation with the Grand River Dam Authority, completed a high-resolution multibeam bathymetric survey to compute a new area and capacity table for Grand Lake O’ the Cherokees in northeastern Oklahoma. Area and capacity tables identify the relation between the elevation of the water surface and the volume of water that can be impounded at each...
Geologic map and borehole stratigraphy of Hinkley Valley and vicinity, San Bernardino County, California Geologic map and borehole stratigraphy of Hinkley Valley and vicinity, San Bernardino County, California
Hinkley Valley, in the central to western Mojave Desert of southeastern California, has a long historical record owing to its position as a crossroads for rail and road traffic and its position adjacent to the Mojave River. Subflow in the Mojave River provided groundwater recharge that maintained water consumption and demand by way of shallow wells for local agriculture in the valley...
Geologic map of Jezero crater and the Nili Planum region, Mars Geologic map of Jezero crater and the Nili Planum region, Mars
The cratered highlands located northwest of Isidis Planitia have been recognized as one of the best preserved Noachian landscapes currently exposed on Mars; the area hosts a record of diverse surface processes, diagenesis, and aqueous alteration. This region has consistently been considered a high priority for landed-mission exploration and includes the anticipated landing site of the...
Predicted pH of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, south-central United States Predicted pH of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, south-central United States
Regional aquifers in the Mississippi embayment are the principal sources of water used for public and domestic supply, irrigation, and industrial uses throughout the region. An understanding of how water quality varies spatially, temporally, and with depth are critical aspects to ensuring long-term sustainable use of these resources. A boosted regression tree (BRT) model was used by the...
November 23, 2020—Kīlauea 2018 lower East Rift Zone lava flow thicknesses November 23, 2020—Kīlauea 2018 lower East Rift Zone lava flow thicknesses
Final map of Kīlauea 2018 lower East Rift Zone lava flow thicknesses