Hello folks, To give us something to look at for discussion of this topic, Chris Webster at Somerset County Council has kindly allowed us access to a sample MIDAS XML file with WKT geospatial data. I've added this to the file area for this list. This is the actual case that prompted Alice's question. Follow http://www.jiscmail.ac.uk/archives/fish-technical.html and choose the Files Area to view and download the file (130K) Best wishes Ed