# ISIS3 -- USGS Astrogeology ISIS Cube (Version 3)

ISIS3 is a format used by the USGS Planetary Cartography group to store and distribute planetary imagery data. GDAL provides read-only access to ISIS3 formatted imagery data.

ISIS3 files often have the extension .cub, sometimes with an associated .lbl (label) file. When a .lbl file exists it should be used as the dataset name rather than the .cub file.

In addition to support for most ISIS3 imagery configurations, this driver also reads georeferencing and coordinate system information as well as selected other header metadata.

Implementation of this driver was supported by the United States Geological Survey.

ISIS3 is part of a family of related formats including PDS and ISIS2.

## See Also:

- Implemented as `gdal/frmts/pds/isis2dataset.cpp`.
- GDAL PDS Driver
- GDAL ISIS2 Driver