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1. Bedrock Geologic Map of the Port Wing, Solon Springs, and parts of the Duluth and Sandstone 30' X 60' Quadrangles, Wisconsin [USGS_OFR_2004_1303]
This Open-File Report provides digital data (shapefiles and .e00 files) for the bedrock geology in the Port Wing, Solon Springs, and parts of the Duluth and Sandstone quadrangles in Wisconsin. A ...


2. Color Shaded Relief Map of the Conterminous United States [USGS_OFR_99-11]
The color shaded relief map of the conterminous U.S. was created from 15 arc-second digital elevation model (DEM) data. The data set traces its origins back to the early 1960's when .01 inch scans ...


3. Digital Data Sets Describing Principal Aquifers, Surficial Geology, and Ground-Water Regions of the Conterminous United States [USGS_OFR_99-77]
This report contains digital data sets describing principal aquifers, surficial geology, and ground-water regions of the conterminous United States. The data source for the principal aquifers and ...


4. Geographic Information Systems (GIS) Compilation of Geophysical, Geologic, and Tectonic Data for the Circum-North Pacific [USGS_OFR_99-422]
The accompanying directory structure contains a Geographic Information Systems (GIS) compilation of geophysical, geological, and tectonic data for the Circum-North Pacific. This area includes ...


5. Geomorphic Map of Worcester County, Maryland, Interpreted from a LIDAR-Based, Digital Elevation Model [USGS_OFR_2008_1005]
A recently compiled mosaic of a LIDAR-based digital elevation model (DEM) is presented with geomorphic analysis of new macro-topographic details. The geologic framework of the surficial and near surface ...


6. Geophysical Surveys of Bear Lake, Utah-Idaho, September, 2002 [USGS_OFR_2003_150]
The objectives of the September, 2002 Geophysical Surveys of Bear Lake, Utah-Idaho operations, preliminarily reported here, were (1) to compile a detailed bathymetric map of the lake using swath-mapping ...


7. Geophysical, Sedimentological, and Photographic Data from the John Day Reservoir, Washington and Oregon [USGS_OFR_2004_1014]
Recently, concerns about declining stocks of endangered anadromous salmonids in the Columbia River basin raised the issue of restoration of riverine functions in this and other Columbia and Snake ...


8. High-Resolution Topographic, Bathymetric, and Oceanographic Data for the Pleasure Point Area, Santa Cruz County, California: 2005-2007 [USGS_OFR_2007_1270]
The County of Santa Cruz Department of Public Works and the County of Santa Cruz Redevelopment Agency requested the U.S. Geological Survey (USGS) Western Coastal and Marine Geology Team (WCMG) to ...


9. High-resolution seismic-reflection surveys in the nearshore of outer Cape Cod, Massachusetts [USGS_OFR_2003_235]
The U.S. Geological Survey (USGS) Woods Hole Field Center (WHFC), in cooperation with the USGS Water Resources Division conducted high-resolution seismic-reflection surveys along the nearshore areas ...


10. Landslide Susceptibility Estimated From Mapping Using Light Detection and Ranging (LIDAR) Imagery and Historical Landslide Records, Seattle, Washington [USGS_OFR_2005_1405]
Landforms in Seattle, Washington, that were created primarily by landsliding were mapped using LIDAR-derived imagery. These landforms include landslides (primarily landslide complexes), headscarps, ...


11. Terrestrial LIDAR Investigation of the December 2003 and January 2007 Activations of the Northridge Bluff Landslide, Daly City, California [USGS_OFR_2007_1079]
On December 20, 2003 and again on January 1, 2007, landslides occurred along the coastal bluff that forms the west boundary of Daly City, California sending debris as far as 290 meters downhill and ...


12. Bathymetry and selected perspective views of 6 reef and coastal areas in Northern Lake Michigan [USGS_OFR_2003_120]
Bathymetry and selected perspective views of 6 reef and coastal areas in Northern Lake Michigan involves applying state of the art laser technology and derivative imagery to map the detailed morphology ...


13. Quaternary Stratigraphy, Drainage-Basin Development, and Geomorphology of the Lake Manix Basin, Mojave Desert [USGS_OFR_2007_1281]
The 2007 field trip of the Pacific Cell, Friends of the Pleistocene, visited features of the Quaternary geology and geomorphology of the Lake Manix basin in the Mojave Desert. This report is the guidebook ...


14. 2002 Volcanic Activity in Alaska and Kamchatka: Summary of Events and Response of the Alaska Volcano Observatory [USGS_OFR_2004_1058]
The Alaska Volcano Observatory (AVO) tracks activity at the more than 40 historically active volcanoes of the Aleutian Arc. As of December 31, 2002, 24 of these volcanoes are monitored with short-period ...


15. Digital Database of Selected Aggregate and Related Resources in Ada, Boise, Canyon, Elmore, Gem, and Owyhee Counties, Southwestern Idaho [USGS_OFR_2004_1067]
The U.S. Geological Survey (USGS) compiled a database of aggregate sites and geotechnical sample data for six counties - Ada, Boise, Canyon, Elmore, Gem, and Owyhee - in southwest Idaho as part of ...


16. Potentiometric Surface of the Upper Floridan Aquifer in the Ichetucknee Springshed and Vicinity, Northern Florida, September 2003 [USGS_OFR_2006_1031]
The Upper Floridan aquifer is a highly permeable unit of carbonate rock extending beneath most of Florida and parts of southern Alabama, Georgia, and South Carolina. The high permeability is due in ...


17. Assessment of Hazards Associated with the Bluegill Landslide, South-Central Idaho [USGS_OFR_2004_1054]
The Bluegill landslide, located in south-central Idaho, is part of a larger landslide complex that forms an area in the Salmon Falls Creek drainage named Sinking Canyon. The landslide is on public ...


18. Environmental Atlas of the Lake Pontchartrain Basin [USGS_OFR_2002_206]
The story of Lake Pontchartrain and its surrounding Basin is a fascinating saga. Created at the end of the last Ice Age, this estuary is much more than just a magnificent natural resource. It has ...


19. Global Surface Displacement Data for Assessing Variability of Displacement at a Point on a Fault [USGS_OFR_2013_1305]
This report presents a global dataset of site-specific surface-displacement data on faults. We have compiled estimates of successive displacements attributed to individual earthquakes, mainly paleoearthquakes, ...


20. Contaminated Sediments Database for Long Island Sound and the New York Bight [USGS_OFR_2003_241]
The Contaminated Sediments Database for Long Island Sound and the New York Bight provides a compilation of published and unpublished sediment texture and contaminant data. This report provides maps ...


21. An Assessment of Volcanic Threat and Monitoring Capabilities in the United States: Framework for a National Volcano Early Warning System [USGS_OFR_2005_1164]
A National Volcano Early Warning System NVEWS is being formulated by the Consortium of U.S. Volcano Observatories (CUSVO) to establish a proactive, fully integrated, national-scale monitoring effort ...


22. Preliminary Assessment of Volcanic and Hydrothermal Hazards in Yellowstone National Park and Vicinity [USGS_OFR_2007_1071]
Possible future violent events in the active hydrothermal, magmatic, and tectonic system of Yellowstone National Park pose potential hazards to park visitors and infrastructure. Most of the national ...


23. Debris Flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona [USGS_OFR_2007_1108]
Ample geologic evidence indicates early Holocene and Pleistocene debris flows from the south side of the Santa Catalina Mountains north of Tucson, Arizona, but few records document historical events. ...


24. Landslide Hazards at La Conchita, California [USGS_OFR_2005_1067]
On January 10, 2005, a landslide struck the community of La Conchita in Ventura County, California, destroying or seriously damaging 36 houses and killing 10 people. This was not the first destructive ...


25. Maps Showing the Stratigraphic Framework of South Carolina's Long Bay from Little River to Winyah Bay [USGS_OFR_2004_1013]
South Carolina's Grand Strand is a heavily populated coastal region that supports a large tourism industry. Like most densely developed coastal communities, the potential for property damage and lost ...


26. Coastal Vulnerability Assessment of Assateague Island National Seashore (ASIS) To Sea-Level Rise [USGS_OFR_2004_1020]
A coastal vulnerability index (CVI) was used to map relative vulnerability of the coast to future sea-level rise within Assateague Island National Seashore (ASIS) in Maryland and Virginia. The CVI ...


27. Coastal Vulnerability Assessment of Cape Hatteras National Seashore (CAHA) to Sea-Level Rise [USGS_OFR_2004_1064]
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Cape Hatteras National Seashore (CAHA) in North Carolina. The CVI ranks ...


28. Coastal Vulnerability Assessment of Cumberland Island National Seashore (Cuis) To Sea-Level Rise [USGS_OFR_2004_1196]
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Cumberland Island National Seashore in Georgia. The CVI ranks the following ...


29. Coastal Vulnerability Assessment of Gulf Islands To Sea-Level Rise [USGS_OFR_2003_108]
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Gulf Islands National Seashore (GUIS) in Mississippi and Florida. The CVI ...


30. Coastal Vulnerability Assessment of Olympic National Park To Sea-Level Rise [USGS_OFR_2004_1021]
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Olympic National Park (OLYM), Washington. The CVI scores the following in ...


31. Southeastern Louisiana Coastal Classification Maps - Pass Abel to East Timbalier Island [USGS_OFR_2005_1003]
This data set describes a Coastal Classification Map that extends from Pass Abel to East Timbalier Island. One purpose of the USGS National Assessment of Coastal Change Project is to provide accurate ...


32. West-Central Florida Coastal Classification Maps - Anclote Key to Venice Inlet [USGS_OFR_2003_227]
This data set describes a Coastal Classification Map that extends from Anclote Key to Venice Inlet. One purpose of the USGS National Assessment of Coastal Change Project is to provide accurate representations ...


33. Estimated Water Use in Puerto Rico, 2000 [USGS_OFR_2005_1201]
Water-use data were compiled for the 78 municipios of the Commonwealth of Puerto Rico for 2000. Five offstream categories were considered: public-supply water withdrawals, domestic self-supplied water ...


34. Estimates for Self-Supplied Domestic Withdrawals and Population Served, for Selected Principal Aquifers, Calendar Year 2005 [USGS_OFR_2010_1223]
The National Water-Quality Assessment Program of the U.S. Geological Survey has groundwater studies that focus on water-quality conditions in principal aquifers of the United States. The Program specifically ...


35. Rocky Mountain Snowpack Chemistry at Selected Sites, 1993-2010 [USGS_CO53100]
Rocky Mountain Regional Snowpack Chemistry Monitoring Study Area: High-elevation sites near the Continental Divide in Montana, Wyoming, Idaho, Colorado, New Mexico, and Utah, 1993 to present Study ...


36. Digital Data Sets of Depth-Duration Frequency of Precipitation For Oklahoma [USGS_OFR_99-463]
These geospatial data sets were produced as part of a regional precipitation frequency analysis for Oklahoma. The data sets consist of surface grids of precipitation depths for seven frequencies (expressed ...


37. Estimated Magnitudes and Recurrence Intervals of Peak Flows on the Mousam and Little Ossipee Rivers for the Flood of April 2007 in Southern Maine [USGS_OFR_2007_1146]
Large amounts of rain fell on southern Maine from the afternoon of April 15, 2007, to the afternoon of April 16, 2007, causing substantial damage to houses, roads, and culverts. This report provides ...


38. Geophysical Terranes of the Great Basin and Parts of Surrounding Provinces [USGS_OFR_2004_1008]
This study of geophysical terranes within and surrounding the Great Basin of the western United States integrates geophysical and geologic data to provide new insights on basement composition and ...


39. Radon in Soils of Parts of Cameron, Hidalgo, and Willacy Counties, Texas [USGS_OFR_2005_1423]
This study looks at part of the southern Rio Grande Valley where all of the counties are ranked by USEPA as zone 3. The study area (see index map) includes parts of Cameron, Hidalgo, and Willacy Counites ...


40. Summary Distribution of Slides and Earth Flows in the San Francisco Bay Region, California [USGS_OFR_97_745_C]
This report is a digital database package containing both plotfiles and Geographic Information Systems (GIS) databases of maps of slides and earth flows in the San Francisco Bay Region. The data are ...


41. Land-Cover Change in the Ozark Highlands, 1973–2000 [USGS_OFR_2010_1198]
Led by the Geographic Analysis and Monitoring Program of the U.S. Geological Survey (USGS) in collaboration with the U.S. Environmental Protection Agency (EPA) and the National Aeronautics and Space ...


42. USGS–WHOI–DPRI Coulomb Stress-Transfer Model for the January 12, 2010, MW=7.0 Haiti Earthquake [USGS_OFR_2010_1019]
Using calculated stress changes to faults surrounding the January 12, 2010, rupture on the Enriquillo Fault, and the current (January 12 to 26, 2010) aftershock productivity, scientists from the U.S. ...


43. Middle Pliocene Paleoenvironmental Reconstruction: PRISM2 [USGS_OF99-535]
As part of the USGS Global Change Research effort, the PRISM (Pliocene Research, Interpretation and Synoptic Mapping) Project has documented the characteristics of middle Pliocene climate on a ...


44. Shear Wave Structure of Umbria and Marche, Italy, Strong Motion Seismometer Sites Affected by the 1997-98 Umbria-Marche, Italy, Earthquake Sequence [USGS_OFR_2008_1010]
A long sequence of earthquakes, eight with magnitudes between 5 and 6, struck the Umbria and Marche regions of central Italy between September 26, 1997 and July 1998. The earthquake swarm caused severe ...


45. The National Geochemical Survey - Database and Documentation [USGS_OFR_2004_1001]
The USGS, in collaboration with other federal and state government agencies, industry, and academia, is conducting the National Geochemical Survey (NGS) to produce a body of geochemical ...


46. Development of an Impervious-Surface Database for the Little Blackwater River Watershed, Dorchester County, Maryland [USGS_OFR_2007_1308]
Many agricultural and forested areas in proximity to National Wildlife Refuges (NWR) are under increasing economic pressure for commercial or residential development. The upper portion of the Little ...


47. Coastal Circulation and Sediment Dynamics in Hanalei Bay, Kauai, Part IV, Measurements of Waves, Currents, Temperature, Salinity, and Turbidity, June–September 2006 [USGS_OFR_2008_1295]
High-resolution measurements of waves, currents, water levels, temperature, salinity and turbidity were made in Hanalei Bay, northern Kaua?i, Hawai?i, during the summer of 2006 to better understand ...


48. Debris Flows and Floods in Southeastern Arizona from Extreme Precipitation in July 2006-Magnitude, Frequency, and Sediment Delivery [USGS_OFR_2008_1274]
From July 31 to August 1, 2006, an unusual set of atmospheric conditions aligned to produce record floods and an unprecedented number of slope failures and debris flows in southeastern Arizona. During ...


49. Gravity Data from Dry Lake and Delamar Valleys, east-central Nevada [USGS_OFR_2008_1299]
Cenozoic basins in eastern Nevada and western Utah constitute major ground-water recharge areas in the eastern part of the Great Basin, and our continuing studies are intended to characterize the ...


50. Liquefaction Hazard Maps for Three Earthquake Scenarios [USGS_OFR_2008_1270]
Maps showing the probability of surface manifestations of liquefaction in the northern Santa Clara Valley were prepared with liquefaction probability curves. The area includes the communities of San ...


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