Digital Elevation Model (DEM), Northern Appalachian

Jun 9, 2014 (Last modified Oct 31, 2021)
Uploaded by Northeast
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This dataset represents elevation for the Northern U.S. and Canada.

This Digital Elevation Model (DEM) was created by mosaicing two datasets:

1. U.S. Geological Survey's (USGS) 30 meter National Elevation Dataset (NED) , ~1 arc-second data that is updated over large areas by integrating the 10 meter or better source data (where available), re-sampled to 1 arc-second.

2. The Canadian Digital Elevation Data, Level 1 (CDED1) The Center of Topographic Information (CTI) jointly produces the CDED with federal, provincial, and territorial government agencies as well as the private sector. The CDED consists of an ordered array of ground or reflective surface elevations, recorded in meters, at regularly spaced intervals. Time period (1980-03-01 to 2006-04-18)

The CDED1 was 24 meter cells aggregated to 30 meter cells to match the U.S.G.S. NED.
Data Provided By:
The Nature Conservancy, The Wildlife Conservation Society, U.S.G.S., The Center of Topographic Information
Data Hosted by:
ScienceBase (USGS) View Record
Map Service URL:
Content date:
2014-03-18 (Acquisition)
Contact Organization:
The Wildlife Conservation Society
The Nature Conservancy
Contact Person(s):
not specified
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FGDC Standard Metadata XML
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Original Metadata XML
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Dataset Type:
External Map Service (ArcGIS)
Bookmarked by 2 Members
Included in 1 Public Map , 5 Private Maps
Included in 2 Public Galleries
[{"url": "", "title": "Download All Attached Files from ScienceBase"}, {"url": "", "title": "Download Original Metadata"}, {"url": "", "title": ""}, {"url": "", "title": "DOWNLOAD ORIGINAL DATA HERE"}]

About the Uploader

with Science Applications, Northeast

Administration account for the Northeast Conservation Planning Atlas.