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- DEM
- Digital Elevation Model
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- DOQ
- Digital Orthophoto Quadrangle
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- DOQQ
- Digital Orthophoto Quarter Quadrangle
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- DRG
- Digital Raster Graphic
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- E00
- ESRI Arc/Info Interchange Format
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- ESRI
- Environmental Systems Research Institute
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- GIS
- Geographic Information System
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- MrSID
- Multi-resolution Seamless Image Database
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- Quad
- USGS 7.5 Minute Quadrangle
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- Quarter Quad
- USGS 3.75 Minute Quarter Quadrangle
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- SID
- Seamless Image Database Wavelet Compression, used for graphical raster images
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- USGS
- United States Geologic Survey
Maps & Air Photos
GIS Data
MAGIC Updates
News & Updates
Questions?
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