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1. Databases and Simplified Geology for Mineralized Areas, Claims, Mines and Prospects in Colorado [USGS_OFR_2003_090]
This data release contains mineral resource data for metallic and nonmetallic mineral sites in the State of Colorado. Along with the resource data, there is additional data, such as mineralized areas ...


2. 1:100,000-scale Hydrography for Wyoming (enhanced DLGs) [WYGISC_HYDRO100K]
The purpose of this data layer was to provide a base layer of water features at a statewide level for riparian/aquatic species distribution modeling for the Wyoming Gap Analysis project. ...


3. 1:24,000-scale Hydrography for ortions Wyoming, various sources [WYGISC_HYDRO24K]
The purpose of this data layer is to provide a base layer of hydrography at the watershed scale for GIS display and analysis. The hydrography described by this metadata, including ...


4. Acidic Surface Waters of the Conterminous United States GIS Data for the EPA Clean Air Mapping and Analysis Program (C-MAP) [A_Water_EPA]
This coverage contains information about estimates of current acid-base status of surface waters in National Surface Water Survey regions in the conterminous U.S., as reported in the National Acid ...


5. Aquatic Ecoregions in the United States GIS Data for the EPA Clean Air Mapping and Analysis Program (C-MAP) [AQUAECO]
Ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils (Omernik, 1987). This is ...


6. Arc Sweden Overview Map (GIS Coverage) [ESRI_Sweden_Cover]
ArcSweden is a geographic database for Sweden containing different map layers. The geographic database consists of general background data and geographic boundaries with demographic statistical information ...


7. BALANS Hydro1K Basin [BALANS_Hydro1K]
Examination of the existing drainage basin delineation at "Baltic Sea region GIS, maps and statistical database" (digitized after a drainage basin definition done in 1986) in comparison with the Hydro1k ...


8. BALANS Land cover [BALANS_LandCover]
The BALANS land cover dataset has been assembled from satellite data from the IRS 1C/1D WiFS satellite. The reference data has been collected from national sources. Note that the ...


9. BALANS Wetlands [BALANS_Wetlands]
The BALANS wetlands dataset has been assembled from satellite data from the IRS 1C/1D WiFS satellite. The reference data has been collected from national sources. Note that the product is not homogenous ...


10. Bartholomew Mapping Solutions Digital Data Sets from MIMAS, Manchester Computing of University of Manchester [BARTS_MAPS_MIMAS]
[Adapted from Overview of some of Bartholomew Digital Map Data] "http://www.mimas.ac.uk/maps/barts/barts2.html" The Bartholomew digital data set is a vector layered map data set comprising of point, ...


11. Baseline and Historic Depositional Rates and Lead Concentrations, Floodplain Sediments, Lower Coeur d'Alene River, Idaho [USGS_OFR_2004_1211]
Lead-rich sediments, containing at least 1000 ppm of lead (Pb), and derived mainly from discarded mill tailings in the Coeur d'Alene mining region, cover about 60 km2 of the 80-km2 floor of the main ...


12. Benthic Information System for the Yukon [Canada_EC_BenthicInfoSysYukon]
Benthic Information System for the Yukon (BISY): A relational database of stream and wetland information for the Yukon and selected areas of Northern BC containing raw data on freshwater benthic invertebrates, ...


13. Biological River Water Quality Dataset for Ireland [Ireland_EPA_River_Quality]
This database IV dataset holds details of all rivers and the individual locations surveyed since 1971. Details include river name, EPA Code, National Grid_REFERENCEs of sample locations and of river/stream ...


14. Blackwater National Wildlife Refuge Boundary in Maryland [USFWS_CSDS_blkbnd]   PARENT METADATA
This dataset contains boundary layers for the Blackwater National Wildlife Refuge Boundary in Maryland. National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). ...


15. CIAT Land Use Project [CGIAR_CIAT_LANDUSE]   CHILD METADATA
The Land Use Project has been involved in a WWF-led initiative to map global rivers and watersheds, called HydroSHEDS. This data is now being released for Latin America, with Asia and Africa to follow ...


16. California Fire and Resource Assessment Program [FRAP_CFRAP]
The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) assesses the amount and extent of California's forests and rangelands, analyzes their conditions ...


17. Coastal Salmon Restoration Initiative, OR, 1997 [Inforain_CSRI]
Core Areas are reaches or watersheds within individual coastal basins that are judged to be of critical importance to the sustenance of salmon populations that inhabit those basins. Core ...


18. Contribution of Atmospheric Deposition to Pesticide Loads in Surface Water Runoff [USGS_OFR_2005_1307]
A 3.5-year study was conducted to determine the signifcance of atmospheric deposition to the pesticide concentrations in runoff. Both wet and dry atmospheric depostion were collected at six sites ...


19. Creation of a Prototype, Web-based Connecticut River Watershed Atlas [USGS_CT_ATLAS]
During the Connecticut River Watershed Sustainability workshops held in 2004, a common message voiced by participants was the need for a centralized database of information to support assessments ...


20. David Rumsey Map Collection [David_Rumsey_Collection]
The Collection: The David Rumsey Collection which started nearly 20 years ago, includes a collection of atlases, globes, school geographies, ...


21. Digital Data Sets Describing Water Use, Toxic Chemical Releases, Metropolitan Areas, and Population Density of the Conterminous United States [USGS_OFR_99-78]
This report contains digital data sets describing water use, toxic chemical releases, metropolitan areas, and population density of the conterminous United States. The data source for the water-use ...


22. Digital Flood Insurance Rate Map Database [FEMA_DFIRM]   PARENT METADATA
The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance ...


23. Digital Geologic Map and GIS Database of Venezuela [USGS_DS_2006_199]
The digital geologic map and GIS database of Venezuela captures GIS compatible geologic and hydrologic data from the "Geologic Shaded Relief Map of Venezuela," which was released online as U.S. Geological ...


24. Digital Line Graphs (DLGs) and Digital Raster Graphics (DRGs) for the state of Delaware [UDEL_DRG_DLG]
All datasets are downloadable from the following URL: "http://www.udel.edu/gis/" DLGs - Digital Line Graphs produced by the United States Geological Survey. DLGs consist of several layers of 1:24,000 ...


25. Digital Line Graphs of U.S. Streams for the EPA Clean Air Mapping and Analysis Program (C-MAP) [Stream_GIS_USGS]
This is a 1:2,000,000 coverage of streams for the conterminous United States. This coverage was intended for use as a background display for the National Water Summary program. The stream layer was ...


26. Digital drainage basin boundaries of named streams in Pennsylvania [USGS_PA_DIGIT]
In 1989, the Pennsylvania Department of Environmental Resources (PaDER), in cooperation with the U.S. Geological Survey, Water Resources Division (USGS published the Pennsylvania (PA) Gazetteer ...


27. Digital hydraulic conductivity values [USGS_ofr96-446_cond]
This data set was created for a project to develop data sets to support ground-water vulnerability analysis. The objective was to create and document a digital geospatial data set from a published ...


28. ERF1 -- Enhanced River Reach File 1.2 [USGS_erf1]
ERF1 was designed to be a digital data base of river reaches capable of supporting regional and national water-quality and river-flow modeling and transport investigations in the water-resources community. ...


29. ERF1-2 -- Enhanced River Reach File 2.0 [USGS_erfi-2]
This report describes the process of enhancements to the stream reach network, ERF1, which is an enhanced version of EPA's RF1. The U.S. Environmental Protection Agency's reach file (RF1) is a database ...


30. ESRI Data and Maps [ESRI_DM]
ESRI Data & Maps is preconfigured to work with ESRI's software products and is also bundled with ArcGIS software and solutions products such as ArcGIS Business ...


31. EarthTrends: The Environmental Information Portal [WRI_EarthTrends]
EarthTrends is an online collection of information regarding the environmental, social, and economic trends that shape our world. Committed to the principle that accurate information ...


32. Earthquakes and Planning for Ground Rupture Hazards [SSDP_HAZARD_EARTHQUAKE]
Detailed maps bring a greater resolution to the number and locations of active faults. Preparing maps at a higher resolution requires extensive field study, and with a GIS, information, such as tract ...


33. Ecoregion Maps and GIS Resources [EPA_ECOREGION]
Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, ...


34. Ecoregions for Rivers and Lakes in Europe [EEA_ECOREGIONS]
Ecoregions are based on fauna living in European inland waters. The data was published as a map in Annex XI, Water Framework Directive, in Official Journal of the European Communities. ...


35. Europa Technologies Map Gallery [EuropaTechnologies_map_gallery]
This map gallery data collection is a showcase of images created using Europa Technologies map data products. All maps were created automatically-without any human interaction. The gallery includes ...


36. Europe 1:1,000,000 digital map data [EU_1TO1M_DIGITAL]
[Adapted from "http://bartholomewmaps.com/dataprod.asp?pid=45"] Covering 52 countries, this pan-European dataset is available either as 22 separate vector layers for geographic analysis, or as ...


37. FEMA Digital Q3 Flood Data [FEMA_Digital_Q3]   CHILD METADATA
Digital Q3 Flood Data are developed by scanning the existing FIRM hardcopy, vectorizing a thematic overlay of flood risks. Vector Q3 Flood Data files contain only certain features from ...


38. Florida Geographic Data Library [FGDL]
The Florida Geographic Data Library (FGDL) is a mechanism for distributing spatial (GIS) data throughout the state of Florida. The FGDL is warehoused and maintained at the University of Florida's ...


39. GIS Coverage for the National Water-Quality Assessment (NAWQA) Program Retrospective Database for Nutrients in Surface Water: Monitoring Locations [NAWQAHIS]
The retrospective database is a compilation of historical water-quality and ancillary data collected before NAWQA Study Units initiated sampling in 1993. This coverage contains the point locations ...


40. GIS Coverage of the National Water-Quality Assessment (NAWQA) Program Trace Elements Sampling Sites for the EPA Clean Air Mapping and Analysis Program (C-MAP) [NAWQA_TE]
This is a point coverage of the sampling sites for the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program Study-Unit investigations of Trace Elements for the conterminous United ...


41. GIS Coverage of the National Water-Quality Assessment Study-Unit Investigations in the conterminous United States (NAWQA) [NAWQA]
This is a coverage of the boundaries and codes used for the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program Study-Unit investigations for the conterminous United States, excluding ...


42. GIS Data from the Montgomery County Maryland Atlas Project [CGIS_montgomery_GIS_atlas]
This data atlas provides GIS maps for download into a GIS database. The atlas includes feature data and image data. The feature data consists of airports, census block groups, ...


43. GIS Datasets for the State of Montana: Upper Clark Fork 1:24,000 Scale USGS Base Map Data [MSL_NRIS_REG_UPCL_BASE]
This collection contains eight individual datasets pertaining to base map data that covers the Upper Clark Fork, Montana. These include the following: 1. Roads 2. Streams 3. Lakes 4. Railroads 5. ...


44. GIS Datasets for the State of Montana: Upper Clark Fork Photogrammetric Data [MSL_NRIS_REG_UPCL_PHOTO]
This collection contains eleven individual datasets relating to features that were interpreted and digitized from large scale photography for the Upper Clark Fork, Montana. An index map illustrating ...


45. Generalized Lithology and Lithogeochemical Character of Near-Surface Bedrock in the New England Region [USGS_OFR_2003_225]
This geographic information system (GIS) data layer shows the dominant lithology and geochemical, termed lithogeochemical, character of near-surface bedrock in the New England region covering the ...


46. Geologic Map of Oregon [Inforain_Oregon_Geology]
This is a geologic map of Oregon showing geographic lithology and fault coverage. The map was originally compiled on 1:400,000-scale quarters of the early 1980s version of the Oregon base map for ...


47. Glacier Bay Ecosystem GIS [Inforain_USGS_GBE]
The United States Geological Survey (USGS) and Interrain Pacific are please to help make available to the public this integrated Geographic Information System for the Glacier Bay / northern Southeast ...


48. Global Reservoirs [USDA_FAS_Global_Reservoirs]
The project will utilize near-real time radar altimeter data from the Poseidon-2 instrument on-board the Jason-1 satellite and construct time-series graphs of surface water height variations. The ...


49. Ground-Water Reconnaissance of the Bijou Creek Watershed, South Lake Tahoe, California, June-October 2003 [USGS_OFR_2005_1329]
A ground-water reconnaissance study of the Bijou Creek watershed in South Lake Tahoe, California was done during the summer and early fall of 2003. This study provides basic hydrologic data for a ...


50. Humboldt River main stem, Nevada [USGS_hydmain_hum]
This dataset was created as a layer of a geographic information system (GIS) to calculate river miles on the Humboldt River. The currentness and accuracy of the digital orthophoto quadrangle (DOQ) ...


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