<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"><meta http-equiv="content-type" content="text/html; charset=utf-8"><br><br><div dir="ltr">sent from a phone</div><div dir="ltr"><br><blockquote type="cite">On 3. May 2020, at 12:51, Andrew Harvey <andrew.harvey4@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">There is an EPSG code <a href="https://spatialreference.org/ref/epsg/5711/" target="_blank">https://spatialreference.org/ref/epsg/5711/</a> for the datum, perhaps ele:epsg:5711= is better then.</div></blockquote><br><div><br></div><div>A system like this would probably be ignored by 85-98% of our mappers, although I would encourage to use it if you know this.</div><div><br></div><div>Cheers Martin </div></div></body></html>