A DRG file is in MrSID format with these files available: drg_s_or071.aux,
drg_s_or071.sid, drg_s_or071.sid.xml, drg_s_or071.sdw, and
The accompanying .txt file tells me the projection is UTM Zone 10. To
create a new location for this map I need to specify the file holding the
projection information and select the correct format in the GUI's second
Which file should I use to inform the grass GIS of the MrSID projection?
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