Digital Elevation Model Data from 7.5-Minute Quadrangle Maps
Entry ID: 7_MIN_DEM

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Summary
Abstract: Produced by the U.S. Geological Survey (USGS), the 7.5-Minute Digital
Elevation Model (DEM) data are digital representations of cartographic
information in a raster form. DEMs consist of an array of elevations for
ground positions at regularly spaced intervals. The data are produced in
7.5- by 7.5-minute blocks either from digitized cartographic map contour
overlays or from scanned ... View entire text
Related URL
Description: National Elevation Database
Geographic Coverage
Spatial coordinates   
  N: 48.0   S: 15.0   E: -162.0   W: -67.0

ISO Topic Category
Access Constraints None
Use Constraints There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
Originating Center
Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL: http://eros.usgs.gov/

Data Center Personnel
Name: EROS CENTER
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Distribution
Distribution Media: Digital Download from http://ned.usgs.gov
Fees: None
Personnel
Role: DIF AUTHOR
Phone: 605-594-6594
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
Information Systems Management
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Publications/References
U.S. Geological Survey (1993), Digital elevation models--data users guide 5: [Reston, Virginia], U.S. Geological Survey, 48

U.S. Geological Survey (1993), Standards for digital elevation models, National Mapping Division technical instructions: [Reston, Virginia], U.S. Geological Survey, [variously paged]
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2013-06-03
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