Porter GeoConsultancy Pty Ltd (PGC) provides access to this database at no charge.   It is largely based on papers and reports in the public domain, and was current when the sources consulted were published.   While we endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PGC takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations ........ MORE