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GIS Data

Imagery and geospatial data sources that can be used in GIS and mapping projects.
Geospatial data for research related to elevation. Coverage includes LiDAR, bathymetry, digital elevation models (DEMs), slope, etc.

Overview of digital elevation models (DEMs)

Global Elevation Data

U.S. Elevation Data

Canada Elevation Data

Topographic Maps

Additional resources on topographic maps are available in our Maps, Atlases & Gazetteers guide.