Geographic areas
National and global databases
Additional studies and data
- Magnetic susceptibilities measured on rocks of the Upper Cook Inlet, Alaska [New Window]
- Analysis of rock samples, with photos of sample localities
- Multielement geochemical dataset of surficial materials for the northern Great Basin [New Window]
- Geochemical data generated during mineral and environmental assessments for the Bureau of Land Management in northern Nevada, northeastern California, southeastern Oregon, and southwestern Idaho.
- Spatial database of mining-related features in 2001 at selected phosphate mines, Bannock, Bear Lake, Bingham, and Caribou Counties, Idaho [New Window]
- Features include mine pit; backfilled mine pit; waste rock dump; adit and waste rock dump; ore stockpile; topsoil stockpile; tailings or tailings pond; sediment catchment; facilities; road; railroad; water reservoir; disturbed land, undifferentiated; and
- Digital database of mining-related features at selected historic and active phosphate mines, Bannock, Bear Lake, Bingham, and Caribou Counties, Idaho [New Window]
- Spatial database that delineates mining-related features in areas of historic and active phosphate mining.
- Chemical Composition of Samples Collected from Waste Rock Dumps and Other Mining-Related Features at Selected Phosphate Mines in Southeastern Idaho, Western Wyoming, and Northern Utah [New Window]
- Chemical analyses for 31 samples collected from various phosphate mine sites in southeastern Idaho (25), northern Utah (2), and western Wyoming (4)
- Geology and mineral deposits of the Keweenaw Peninsula and vicinity, Michigan [New Window]
- Geospatial data and tabular data on the geology, structure, mines and mineral deposits, including lithology, age, tectonic setting, and stratigraphy.
- Isostatic gravity map of the Battle Mountain 30'x60' Quadrangle, north central Nevada [New Window]
- Map for which the underlying gravity station data are available for download
- Preliminary integrated geologic map databases for the United States: Digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Aeromagnetic and gravity maps of the central Marysvale volcanic field, southwestern Utah [New Window]
- Maps (no data) depicting aeromagnetic and Bouguer gravity anomaly in the study area. Report discusses rock sample density and magnetic properties, but data are buried in PDF tables.
- Geophysical framework investigations influencing ground-water resources in east-central Nevada and west-central Utah, with a section on Geologic and geophysical basin-by-basin descriptions [New Window]
- Maps of geophysical and geological characteristics, with report
- Geophysical data from the Spring and Snake Valleys area, Nevada and Utah [New Window]
- Existing and new gravity station data and magnetometer measurements used to infer geologic structure of this area
- Available sand and gravel resources in southern New Hampshire [New Window]
- Estimates thickness of sand and gravel resources available in this broad area using geology, topography, land cover, and ground-water level.
- Estimated gravel resources of the Soucook River valley, Loudon, New Hampshire, 7.5' Quadrangle using improved techniques for assessing gravel resources in glaciofluvial deposits [New Window]
- Images and text from a poster session (Geological Society of America Northeastern Section) showing methodology and results for an example
- Digital bedrock geologic map of the Ashland and northern part of the Ironwood 30' x 60' quadrangles, Wisconsin and Michigan [New Window]
- Geologic units and structural features, GIS data files
- Preliminary integrated geologic map databases for the United States: Montana, Wyoming, Colorado, New Mexico, Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the southwestern United States (Arizona, Nevada, and Utah) [New Window]
- Map and data tables show location, mineralogy, geology, and relevant literature for each mine, prospect, or occurrence
- Anchorage urban region aeromagnetics (AURA) project -- Preliminary geophysical results [New Window]
- Basic features of a commercial aeromagnetic dataset, a regional and historical perspective on aeromagnetic feature interpretation for this area, and preliminary interpretations of mathematical modeling experiments using the data.
- Digital data for the geology of the Prince William Sound and Kenai Peninsula region, Alaska [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Chemistry of stream sediments and surface waters in New England [New Window]
- Regional data for pH, alkalinity, and specific conductance for stream waters and a multi-element geochemical dataset for stream sediments collected in the New England.
- Net acid production, acid neutralizing capacity, and associated geophysical, mineralogical, and geochemical characteristics of Animas River watershed rocks near Silverton, Colorado [New Window]
- Geochemical analysis of rock samples focusing on characteristics relevant to mine cleanup discussions
- Candidate-penetrative-fracture mapping of the Grand Canyon area, Arizona, from spatial correlation of deep geophysical features and surficial lineaments [New Window]
- Includes a wide variety of geological and geophysical data: geologic, aeromagnetic, and gravity maps with SLAR, DEM, TM, and NDVI imagery.
- Mineral resource potential and geology of the Routt National Forest and the Middle Park Ranger district of the Arapaho National Forest, Colorado [New Window]
- Report describing interpretations of geological, geophysical, and mineral resource data, with some maps as figures in the report.
- Hydrogeochemical investigations of historic mining districts, central western slope of Colorado, including influence on surface-water quality [New Window]
- Geochemical analysis of mine dumps, mill tailings, mine drainage, and surface waters indicate contamination from these historic mines is generally less than that asserted or suggested by some geochemical models
- Alaska resource data file: Arctic quadrangle [New Window]
- Descriptions of mines, prospects, and mineral occurrences in the Arctic quadrangle, Alaska
- Mining claim activity on Federal lands for the period 1976 through 2005 [New Window]
- Number and type of mine claims located on Federal lands and registered with the Bureau of Land Management, by year from 1976 through 2005.
- Preliminary integrated geologic map databases for the United States: California, Nevada, Arizona, and Washington [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Arizona aeromagnetic and gravity maps and data [New Window]
- Aeromagnetic surveys of Arizona, merged to form seamless grids across the state. Gravity anomaly data are provided as well.
- Geophysical terranes of the Great Basin and parts of surrounding provinces [New Window]
- A set of geophysical maps with anomalies that are labeled and keyed to tables containing information on each anomaly and its source.
- Puget Sound (Washington) aeromagnetic maps and data [New Window]
- Gridded data and maps for individual quadrangles and for the entire compilation
- Geochemical analysis of soils and sediments, Coeur d'Alene drainage basin, Idaho: Sampling, analytical methods, and results [New Window]
- Chemical composition of sediments and soils are of interest because of the potential for human and wildlife health impacts from high metal contents due to over 100 years of mining activity.
- Aerial gamma-ray survey for parts of Cameron, Hildalgo, and Willacy Counties, Texas [New Window]
- The USGS had an aerial survey flown over parts of Cameron, Hidalgo, and Willacy Counties in Texas. The aerial survey included measurements of the earth's magnetic field and of the radioactivity of the surface rocks and soils.
- Helicopter electromagnetic and magnetic geophysical survey data, Oakland, Ashland, and Firth study areas, eastern Nebraska, March 2007 [New Window]
- Electrical resistivity depicted in georeferenced grids and maps, representing different approximate depths of investigation for each area. The range of subsurface investigation is comparable to the depth of shallow aquifers.
- Resource potential and geology of the Grand Mesa, Uncompahgre, and Gunnison (GMUG) National Forests and vicinity, Colorado [New Window]
- Multi-chapter report combining geologic, geochemical, geophysical, and mining activity data
- High resolution aeromagnetic survey to image shallow faults, Dixie Valley geothermal field, Nevada [New Window]
- Explains analysis of helicopter aeromagnetic survey data for delineating shallow geological structures
- A helicopter-borne magnetic survey over Dixie Valley geothermal field, Nevada [New Window]
- Gridded data from helicopter study of shallow geologic structures
- Geologic and geophysical maps of the Death Valley ground-water model area, Nevada and California [New Window]
- Maps and geospatial data for (a) geology; (b) tectonics; (c) isostatic gravity anomaly; (d) aeromagnetic anomaly; (e) depth to pre-Cenozoic basement.
- Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications [New Window]
- Report describing detailed interpretation of geophysical survey data to draw inferences about subsurface geologic features and likely consequences for the hydrogeologic system.
- Seven aeromagnetic surveys in California and Nevada [New Window]
- Grid and flight-line data files provided by the geophysical survey contractors.
- Geochemical analyses of geologic materials from areas of critical environmental concern, Clark and Nye counties, Nevada [New Window]
- Results of analysis in tabular form
- Six aeromagnetic surveys in Nevada and California [New Window]
- Gridded data for aeromagnetic surveys with contractors' reports describing the data collection
- Digital geologic map of the Nevada Test Site and vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California, revision 4 [New Window]
- GIS data for geologic units and structural features, with aeromagnetic and gravity maps in PDF
- Geophysical constraints on the Virgin River depression, Nevada, Utah, and Arizona [New Window]
- Report explaining how geophysical data are used to infer the geologic structure of basins, with implications for ground-water flow
- Preliminary aeromagnetic anomaly map of California [New Window]
- Map showing magnetic anomaly of California composed by merging and editing data from 123 distinct surveys conducted previously.
- Geology and indoor radon in schools of the Palos Verdes Peninsula unified school district, Palos Verdes Peninsula, California [New Window]
- Information about indoor radon in schools of the Palos Verdes Peninsula Unified School District (PVPUSD) and general information about the potential for indoor radon elsewhere in California.
- Aeromagnetic survey of Dillingham Area in Southwest Alaska [New Window]
- Gridded survey data with summary map images.
- Merged digital aeromagnetic data for the middle Rio Grande and southern Española Basins, New Mexico [New Window]
- Gridded data and images
- Description of digital aeromagnetic data collected north and west of Albuquerque, New Mexico [New Window]
- Grids and images depicting the data
- Aerial magnetic, electromagnetic, and gamma-ray survey, Berrien County, Michigan [New Window]
- CD-ROM containing maps, grids, and flight-line databases of a detailed aerial survey and maps and grids of satellite data
- Preliminary grid data and maps for an aeromagnetic survey of the Taylor Mountains quadrangle and a portion of the Bethel quadrangle, Alaska [New Window]
- Preliminary data (grids and images) and maps for a new aeromagnetic survey
- Helicopter electromagnetic and magnetic survey data and maps, northern Bexar County, Texas [New Window]
- Grids, images, and flight-line paths for magnetic and resistivity surveys
- Aerial gamma-ray, Landsat TM, and digital elevation data, Big Bend area, Texas [New Window]
- This report presents the results of analyses and interpretation of aerial gamma-ray, Landsat TM, geologic, and digital elevation data of the Big Bend area in Texas.
- Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska [New Window]
- Reconnaissance geologic map of the lower Yukon River region in southwest Alaska includes Quaternary surficial deposits on the delta plain and bedrock exposures in mountains within the delta plain and the uplands that border the delta plain.
- Stratabound copper-silver deposits of the Mesoproterozoic Revett Formation, Montana and Idaho with a section on databases and spatial-data files for the geology and mineral deposits of the Revett Formation [New Window]
- Includes deposits, occurrences, and prospects; drill core logs and measured sections; and spatial databases for geologic maps, untested exploration areas, and permissive tracts for undiscovered mineral deposits.
- Geophysical interpretations of the Libby Thrust Belt, Northwestern Montana [New Window]
- Report using gravity anomaly data with seismic profile and magnetotelluric data to infer deep geologic structure.
- Isotopic ages of rocks in the northern Front Range, Colorado [New Window]
- Maps, tables, and GIS data for isotopic ages determined in the northern part of the study area.
- Uranium in surface waters and sediments affected by historical mining in the Denver West 1:100,000 quadrangle, Colorado [New Window]
- Geochemical analysis of stream waters and sediments in mountainous areas immediately west of Denver, Colorado, to evaluate the concentration and distribution of uranium-bearing acid drainage originating from historical mines
- Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Spatial digital database for the tectonic map of southeast Arizona [New Window]
- Geologic map GIS which represents the original content of the published geologic map and which can be queried in many ways to produce a variety of geologic maps and derivative products.
- Aeromagnetic surveys in the Anchorage, Iliamna, and Tyonek quadrangles, Alaska [New Window]
- Gridded data from aeromagnetic surveys
- Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States [New Window]
- Set of 3 CD-ROMs containing data in custom formats that can be converted or viewed only with the supplied software which was designed only for DOS, Windows 3.1, or Windows 95
- National geophysical data grids; gamma-ray, gravity, magnetic, and topographic data for the conterminous United States [New Window]
- Gridded geophysical data in a variety of formats.
- Preliminary Precambrian basement structure map of the continental United States -- An interpretation of geologic and aeromagnetic data [New Window]
- Map and report showing deep crustal structure as inferred from the recently-compiled magnetic anomaly map of North America
- Online files for acid deposition sensitivity map [New Window]
- GIS data files Acid Deposition Sensitivity of the Southern Appalachian Assessment Area. Susceptibility to acid deposition from air pollution is categorized as low, medium, or high for each area.
- Spatial databases for the geology of the Northern Rocky Mountains - Idaho, Montana, and Washington [New Window]
- The spatial databases represent the original content of 43 published geologic maps, provide normalized map unit descriptions, and provide additional information and interpretation not in the original reports.
- Alaska resource data file: Adak quadrangle [New Window]
- Descriptions of mines, prospects, and mineral occurrences in the Adak quadrangle, Alaska
- Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the western Aleutian Islands, Alaska [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Guide to geophysical data for the northern Rocky Mountains and adjacent areas, Idaho, Montana, Washington, Oregon, and Wyoming [New Window]
- Mathematical analysis of gravity and aeromagnetic data, with basic and derived grids and vector data and maps.
- Gamma-ray, magnetic, and topographic data for parts of the Colorado Front Range [New Window]
- Five geospatial grids from the NURE surveys, showing potassium, uranium, and thorium concentration, residual magnetic field, and digital elevation.
- Preliminary integrated geologic map databases for the United States: Alabama, Florida, Georgia, Mississippi, North Carolina, and South Carolina [New Window]
- Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.
- Data base for undiscovered deposits of base and precious metals [New Window]
- Probabilistic estimates of the amounts of undiscovered gold, silver, copper, lead, and zinc in conventional types of mineral deposits in the United States.
- National geochemical survey database [New Window]
- National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.
- Garnet--An essential industrial mineral and January's birthstone [New Window]
- General information about garnets: gemstones, industrial use, how garnets are formed, where garnet deposits occur in the U.S., and U.S. industrial consumption.
- Geochemical landscape of the conterminous US: maps of NURE-HSSR data [New Window]
- Maps derived from a subset of the National Uranium Resource Evaluation Hydrogeochemical and Stream Sediment Reconnaissance data. Samples are from streams, lakes, ponds, springs, playas, and soils. Includes Na, Ti, Fe, Cu, Zn, As, Ce, Hf, Pb, Th, and U.
- Bouguer gravity anomaly grid for the conterminous US [New Window]
- Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. This digital grid describes the Bouguer gravity anomaly for the conterminous US.