There is a symbol of surface pit, what is let's say circular canyon. Check wiki.
m.s. On Feb 14, 2017, at 11:09 AM, Henry Bennett via Therion <therion@speleo.sk> wrote: What is the accepted standard for handling canyon walls on the surface? I’d like to use a pitch style line but believe I’d have to duplicate the wall and change type to do this. Also requires setting the original wall to invisible. Any ideas? Many thanks, Henry _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
