[Therion] Creating GeoTIFF files

[Bill Gee]

A question has come up from one of my caver friends who is very new to 
cave survey but an old hand at ArcGIS and various other ESRI tools.  He 
earns a living as a GIS expert.

He would like to get a georeferenced TIFF (GeoTIFF) which includes GPS 
coordinates of survey stations.  I looked at the KML file produced by 
Therion and find no references to survey stations.  A KML file is really 
just a long (very long!) list of GPS coordinates, so it probably could 
include survey stations.

So my question for the group:  Is there a way to produce a GeoTIFF file 
which includes survey stations?

Related question:  Do the ESRI outputs from Therion include survey stations?

Thanks!
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Bill Gee