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This raster depicts the percentage of lithological the hydraulic conductivity (in micrometers per second) of surface or near surface geology. We derived these rasters by calculating the average conductivity for each map unit in combined surficial-bedrock geologic maps. We used state geologic maps (Preliminary Integrated Geologic Map Databases for the United States, Open File Reports 2004-1355, 2005-1305, 2005-1323, 2005-1324, 2005-1325, 2005-1351, and 2006-1272), which depict surficial geology instead of bedrock when the surficial layers are sufficiently deep. For the state maps that do not incorporate surficial geology (i.e., midwestern states), we overlaid surficial geologic map units with thicknesses greater...
Surficial geologic map of a portion of Organ Pipe Cactus National Monument including the Valley of the Ajo and the western flank of the Ajo Mountains. One map sheet at 1:24,000 map scale.
Categories: Map
The Clifton-Morenci map area includes four 7.5’ USGS quadrangles: Coronado Mountain, Copperplate Gulch, Clifton, and Mitchell Peak. Descriptions of the Precambrian, Paleozoic, and Mesozoic rocks are primarily from Lindgren (1905a,b). The early Tertiary (Laramide) intrusive rock units are also described in detail by Bennett (1975), Menzer (1980), Preece and Menzer (1992), Griffin, Ring and Lowery (1993), Walker (1995), Phelps Dodge (1996), and Wright (1997). Hydrothermal alteration of the rocks of the Morenci porphyry copper deposit is well described in Lindgren (1905a), Reber (1916), Bennett (1974), Preece, Stegen and Weiskopf (1993), and Walker (1995). Descriptions of the Tertiary volcanic and sedimentary rocks...
Categories: Map
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A hydrologic model was developed as part of the Southeast Regional Assessment Project using the Precipitation Runoff Modeling System (PRMS), a deterministic, distributed-parameter, process-based system that simulates the effects of precipitation, temperature, and land use on basin hydrology. Streamflow and other components of the hydrologic cycle simulated by PRMS were used to inform other types of simulations such as water-temperature, hydrodynamic, and ecosystem-dynamics simulations.
The Desert Peak 7-1/2' Quadrangle is located in southeastern Pinal County, and extreme northern Pima County, about 40 km northwest of Tucson, Arizona. It includes the extreme western edge of the Tortolita Mountains, Owl Head Buttes, and the piedmont areas extending west to, and including, Desert Peak. Elevations in the study range from approximately 3100 feet in the Tortolita Mountains to 2000 feet on the western piedmonts. Bedrock and surficial geology in the study area were mapped between October 2001 to June 2002 as part of a multi-year mapping program directed at producing complete geologic map coverage for the Phoenix-Tucson metropolitan corridor. The primary product resulting from new mapping in the study...
Categories: Map
Geologic map at 1:24,000 map scale of the surficial geology of the Armenta Well and part of the Gunsight 7.5' topographic quadrangles.
Categories: Map
The Daggs Tank 7.5-minute Quadrangle is located approximately 40 miles (60 km) northwest of downtown Phoenix on the east side of Hassayampa Plain. Much of the map area consists of the western piedmont of the White Tank Mountains, but the western third of the map area is dominated by deposits of the south-flowing Hassayampa River, a major regional drainage in central Arizona. The surficial geology depicted in this map is modified from Field and Pearthree (1991b), and includes new field mapping and aerial photograph interpretation using high-resolution digital images provided by Maricopa County. Tertiary volcanic rocks were mapped for this study, but much of the rest of the bedrock was mapped by Barret (1976) and...
Categories: Map
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Current national data resources for GAP include three primary data sets – land cover, protected areas, and species. Land Cover: The GAP/LANDFIRE National Terrestrial Ecosystems data, based on the NatureServe Ecological Systems Classification, are the foundation of the most detailed, consistent map of vegetation available for the United States. These data facilitate the planning and management for biological diversity on a regional and national scale. Learn more about GAP land cover data here: https://www.usgs.gov/core-science-systems/science-analytics-and-synthesis/gap/science/land-cover Protected Areas: The Protected Areas Database of the United States (PAD-US) is a national geodatabase, created by USGS GAP,...
Released hydrology research data sets
Categories: Data, Image, Map
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The Prairie Pothole Region spans parts of North and South Dakota, Minnesota, Montana, Iowa and south-central Canada and contains millions of wetlands that provide habitat for breeding and migrating birds. Because it is the continent’s most important breeding area for waterfowl, conservation and management largely focuses on protecting habitat for nesting ducks. However, other wetland-dependent birds also rely on this region, and it is important to understand the degree to which habitat conserved for ducks provides habitat for other species, and how the quality of this habitat will be affected by climate change. Project researchers tested whether waterfowl are effective representatives, or surrogates, for other wetland-dependent...
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High-latitude regions are experiencing rapid and extensive changes in ecosystem composition and function as the result of increases in average air temperature. Increasing air temperatures have led to widespread thawing and degradation of permafrost, which in turn has affected ecosystems, socioeconomics, and the carbon cycle of high latitudes. Research shows that the distribution of permafrost is heterogeneous in nature and that permafrost responds to a wide range of ecological factors. Here we overcome complex interactions between surface and subsurface conditions to map near-surface permafrost using decision-tree models, field observations, remotely sensed and derived data, and climatic indices. The resultant dataset...
A 1:24,000 scale map showing the geology of the West of Avra 7.5' quadrangle. The map focus is Quaternary-age basin fill deposits. Supplemental_Information: Research supported by the Arizona Geological Survey and U.S. Geological Survey, National Cooperative Geologic Mapping Program, under USGS award #99HQAG0171. The view and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.
Categories: Map
Surficial mapping of part of the Sonoyta Valley of Organ Pipe Cactus National Monument at 1:24,000 map scale.
Categories: Map
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This raster depicts the percentage of lithological the compressive strength, measured as uniaxial compressive strength (in megaPascals, MPa) of surface or near surface geology. We derived these rasters by calculating the average strength for each map unit in combined surficial-bedrock geologic maps. We used state geologic maps (Preliminary Integrated Geologic Map Databases for the United States, Open File Reports 2004-1355, 2005-1305, 2005-1323, 2005-1324, 2005-1325, 2005-1351, and 2006-1272), which depict surficial geology instead of bedrock when the surficial layers are sufficiently deep. For the state maps that do not incorporate surficial geology (i.e., midwestern states), we overlaid surficial geologic map...
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This raster depicts the percentage of lithological magnesium oxide (MgO) content in surface or near surface geology. We derived these rasters by calculating the average percent MgO content for each map unit in combined surficial-bedrock geologic maps. We used state geologic maps (Preliminary Integrated Geologic Map Databases for the United States, Open File Reports 2004-1355, 2005-1305, 2005-1323, 2005-1324, 2005-1325, 2005-1351, and 2006-1272), which depict surficial geology instead of bedrock when the surficial layers are sufficiently deep. For the state maps that do not incorporate surficial geology (i.e., midwestern states), we overlaid surficial geologic map units with thicknesses greater than 100 feet (from...
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This raster depicts the percentage of lithological aluminum oxide (Al2O3) content in surface or near surface geology. We derived these rasters by calculating the average percent Al2O3 content for each map unit in combined surficial-bedrock geologic maps. We used state geologic maps (Preliminary Integrated Geologic Map Databases for the United States, Open File Reports 2004-1355, 2005-1305, 2005-1323, 2005-1324, 2005-1325, 2005-1351, and 2006-1272), which depict surficial geology instead of bedrock when the surficial layers are sufficiently deep. For the state maps that do not incorporate surficial geology (i.e., midwestern states), we overlaid surficial geologic map units with thicknesses greater than 100 feet (from...
Abstract: The Flatiron Mountain 7.5' Quadrangle is located approximately 70 km (40 miles) west of downtown Phoenix, and is just north of Interstate Highway 10. The map area includes the southeastern part of the Belmont Mountains and many isolated bedrock hills south and southeast of the Belmont Mountains. Most of the quadrangle, however, is underlain by Quaternary surficial deposits. Jackrabbit and Coyote washes, heading in the proximal piedmonts of the Big Horn Mountain northwest of the study area, are the major drainages. Jackrabbit Wash is incised up to four meters into older Pleistocene deposits. Coyote Wash flows around the Belmont Mountains and diverges into multiple channels to the south. The channels and...
Categories: Map
The study area is located ~40 km southeast of downtown Tucson, and is bounded by the Rincon Mountains on the north, the Empire Mountains on the southeast, and the northernmost Santa Rita Mountains on the southeast. The map area covers the southern part of the Vail 7 ½' Quadrangle, including all the Paleozoic rocks in the Colossal Cave area. Field mapping was completed during October 2000 through April 2001 as part of a multiyear mapping program directed at producing complete geologic map coverage for the Phoenix-Tucson metropolitan corridor. A 1:24,000 scale map is the primary product of this study (Plate 1). This map consists almost entirely of new mapping but locally incorporates data from published mapping by...
Categories: Map
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The National Fish Habitat Partnership (NFHP) Data Catalog is a centralized location for all publically released datasets, tools and documents from the National Fish Habitat Partnership (NFHP) community. To help search, visualize, and explore data products consider using the NFHP Data Catalog Viewer.
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Researchers from North Carolina State University and the USGS integrated models of urbanization and vegetation dynamics with the regional climate models to predict vegetation dynamics and assess how landscape change could impact priority species, including North American land birds. This integrated ensemble of models can be used to predict locations where responses to climate change are most likely to occur, expressing results in terms of species persistence to help resource managers understand the long-term sustainability of bird populations.


map background search result map search result map NFHP Data Catalog Geologic Map of the West of Avra 7.5' Quadrangle, Pima County, Arizona, v. 2.0 Geologic Map of the Desert Peak 7.5' Quadrangle, Southeastern Pinal County, Arizona, v. 2.0 Geologic Map of the Southern Part of the Vail 7.5' Quadrangle, Eastern Pima County, Arizona, v. 2 Understanding How Climate and Land Use Change Will Impact Wetland-Dependent Birds: Are Waterfowl Effective Surrogates for Other Species? Current National Data Resources for the Gap Analysis Project SERAP:  Modeling of Hydrologic Systems SERAP:  Assessment of Climate and Land Use Change Impacts on Terrestrial Species Geochemical Characteristics of the Conterminous United States: % MgO Geophysical Characteristics of the Conterminous United States: Uniaxial Compressive Strength (MPa) Geophysical Characteristics of the Conterminous United States: Hydraulic Conductivity (µm/s) Geochemical Characteristics of the Conterminous United States: % Al2O3 Probabilistic estimates of the distribution of near-surface permafrost in Alaska SERAP:  Modeling of Hydrologic Systems Understanding How Climate and Land Use Change Will Impact Wetland-Dependent Birds: Are Waterfowl Effective Surrogates for Other Species? SERAP:  Assessment of Climate and Land Use Change Impacts on Terrestrial Species Probabilistic estimates of the distribution of near-surface permafrost in Alaska Geochemical Characteristics of the Conterminous United States: % MgO Geophysical Characteristics of the Conterminous United States: Uniaxial Compressive Strength (MPa) Geophysical Characteristics of the Conterminous United States: Hydraulic Conductivity (µm/s) Geochemical Characteristics of the Conterminous United States: % Al2O3 Current National Data Resources for the Gap Analysis Project NFHP Data Catalog