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Federal
United States Average Annual Precipitation, 1990-2009 - Direct Download 38 recent views
U.S. Geological Survey, Department of the Interior —
This map layer shows polygons of average annual precipitation in the contiguous United States, for the climatological period 1990-2009. Parameter-elevation... -
Federal
Spread of Africanized Honey Bees in the United States - Direct Download 31 recent views
U.S. Geological Survey, Department of the Interior —
This map layer portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Islands. The data indicate the... -
Federal
United States Average Annual Precipitation, 1961-1990 - Direct Download 13 recent views
U.S. Geological Survey, Department of the Interior —
This map layer shows polygons of average annual precipitation in the contiguous United States, for the climatological period 1961-1990. Parameter-elevation... -
Federal
USGS Small-scale Dataset - Major Roads of the United States 199911 Shapefile 11 recent views
U.S. Geological Survey, Department of the Interior —
This data set portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the individual State roads... -
Federal
North American Bat Ranges - Direct Download 10 recent views
U.S. Geological Survey, Department of the Interior —
This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. The specimen and... -
Federal
Arsenic in Ground Water of the United States - Direct Download
U.S. Geological Survey, Department of the Interior —
This image shows national-scale patterns of naturally occurring arsenic in potable ground-water resources of the continental United States. The image was generated... -
Federal
Major Dams of the United States - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer portrays major dams of the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extracting dams 50 feet or... -
Federal
100-Meter Resolution Natural Earth of Alaska - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer contains a natural-earth image of Alaska. The image is land cover in natural colors combined with shaded relief, which produces a naturalistic... -
Federal
Hydrologic landscape regions of the United States
U.S. Geological Survey, Department of the Interior —
Hydrologic landscape regions (HLRs) in the United States were delineated by using geographic information system (GIS) tools and statistical methods including... -
Federal
Agriculture Census of the United States - 2007 - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer portrays a selected set of information that was collected for the 2007 Census of Agriculture by the National Agricultural Statistics Service, U.S.... -
Federal
Forest Cover Types - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer portrays general forest cover types for the United States. Data were derived from Advanced Very High Resolution Radiometer (AVHRR) composite images... -
Federal
Base-flow index grid for the conterminous United States
U.S. Geological Survey, Department of the Interior —
This 1-kilometer raster (grid) dataset for the conterminous United States was created by interpolating base-flow index (BFI) values estimated at U.S. Geological... -
Federal
National Wilderness Preservation System of the United States - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer consists of National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S. Virgin Islands. The... -
Federal
USGS Small-scale Dataset - Railroad and Bus Passenger Stations of the United States 201207 FileGDB 10.1
U.S. Geological Survey, Department of the Interior —
This map layer shows Amtrak intercity railroad and bus passenger terminals in the United States. There are no Amtrak stations in Alaska or Hawaii. The data are a... -
Federal
100-Meter Resolution Tree Canopy of Alaska - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer contains tree canopy data for Alaska, in an Albers Equal-Area Conic projection and at a resolution of 100 meters. The tree canopy data were derived... -
Federal
Ground-Water Climate Response Network - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer shows the locations of wells maintained by the U.S. Geological Survey (USGS) that are used to monitor the effects of droughts and other climate... -
Federal
Classification of Forest Fragmentation in North America - Direct Download
U.S. Geological Survey, Department of the Interior —
This map layer is a grid map of North America including the Caribbean and most of Mexico. The map layer is an excerpt from a global assessment of forest... -
Federal
USGS Small-scale Dataset - 1:1,000,000-Scale Railroads of the United States 201403 Shapefile
U.S. Geological Survey, Department of the Interior —
This map layer includes railroads in the conterminous United States and Alaska. This is a revised version of the July 2012 map layer. -
Federal
Digital data set describing surficial geology in the conterminous US
U.S. Geological Survey, Department of the Interior —
This digital data set describes surficial geology of the conterminous United States. The data set was generated from a U.S. Geological Survey 1:7,500,000-scale map...