This point shapefile represents locations of crushed stone operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2002 with production greater than 50,000 tons, which are non-government, non-portable, and surveyed by the MIT. This is a replacement for the January 2001 map layer. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for the geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey or the National Atlas of the United States in the use of these data.
This point shapefile represents locations of crushed stone operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2002 with production greater than 50,000 tons, which are non-government, non-portable, and surveyed by the MIT. This is a replacement for the January 2001 map layer. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for the geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey or the National Atlas of the United States in the use of these data.

The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived from the National Geophysical Data Center's ETOPO2 elevation data, which is an elevation database gridded at 2-minute resolution, containing elevation and bathymetry for the world. The image was produced from the October 2001 data set. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
The bathymetric shaded relief image was developed to portray the underwater terrain of North America. The image is intended for visual purposes only. The original ETOPO2 data must be used for conducting analysis and determining specific bathymetric values.
The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived from the National Geophysical Data Center's ETOPO2 elevation data, which is an elevation database gridded at 2-minute resolution, containing elevation and bathymetry for the world. The image was produced from the October 2001 data set. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
The bathymetric shaded relief image was developed to portray the underwater terrain of North America. The image is intended for visual purposes only. The original ETOPO2 data must be used for conducting analysis and determining specific bathymetric values.

The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2 elevation data, which is an elevation database gridded at 2-minute resolution, containing elevation and bathymetry for the world. The image was produced from the October 2001 data set. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
The bathymetry image was developed to portray ocean depths around North America. This image is intended for visual purposes only. The original ETOPO2 data must be used for conducting analysis and determining specific bathymetric values.
The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2 elevation data, which is an elevation database gridded at 2-minute resolution, containing elevation and bathymetry for the world. The image was produced from the October 2001 data set. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
The bathymetry image was developed to portray ocean depths around North America. This image is intended for visual purposes only. The original ETOPO2 data must be used for conducting analysis and determining specific bathymetric values.

This polygon shapefile contains information on costly regional landslide events in the 50 United States and Puerto Rico. The extents of the regional events were drawn from the published literature and represent the approximate boundaries of extensive landsliding triggered by a single meteorological or seismic event. The regional extents should be considered approximate. In several cases the limits shown represent an arbitrary administrative boundary rather than the extent of landsliding related to a storm or earthquake. Costly events are defined as those where there was public or private property damage or loss of human life. Landslides are defined in a broad manner, to include most types of gravitational mass movement such as rockfalls, debris flows, and the failure of engineered soil materials. Landslide causes include earthquakes, reservoir draw-downs, and heavy precipitation. This is an updated version of the April 2001 map layer. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.
This polygon shapefile contains information on costly regional landslide events in the 50 United States and Puerto Rico. The extents of the regional events were drawn from the published literature and represent the approximate boundaries of extensive landsliding triggered by a single meteorological or seismic event. The regional extents should be considered approximate. In several cases the limits shown represent an arbitrary administrative boundary rather than the extent of landsliding related to a storm or earthquake. Costly events are defined as those where there was public or private property damage or loss of human life. Landslides are defined in a broad manner, to include most types of gravitational mass movement such as rockfalls, debris flows, and the failure of engineered soil materials. Landslide causes include earthquakes, reservoir draw-downs, and heavy precipitation. This is an updated version of the April 2001 map layer. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.

This data set includes a selection of urban areas in the United States derived from the urban areas layer of the Digital Chart of the World (DCW). This is a revised version of the 1998 data set. Only minor corrections have been made. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
This data set includes a selection of urban areas in the United States derived from the urban areas layer of the Digital Chart of the World (DCW). This is a revised version of the 1998 data set. Only minor corrections have been made. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.