Good morning all

I have just put together a Therion Extended Elevations page, having convinced myself that I have almost figured out how to make them work.  You can navigate there from the wiki start page, via the ‘Data Organisation’ link.

Thanks and apologies to Marco Corvi, for the inspiration and words I have borrowed from his page.  Marco, is it OK?

It is not quite complete yet (I have a history of not completing projects) however if someone can direct me to the centreline and drawing data for the famous Therion Extended Elevation Control sample, then I might remain inspired enough to generate a more comprehensive set of examples.

Enjoy your caves

Bruce