survey about ledge symbology in profile views

[Dwight Livingston]

I am conducting a survey of cave cartographers on the topic of ledge
symbology in profile views. Results of this survey will be included in a
cartography session at this summer's NSS convention. A guide is included
with the survey that provides more information about the study and about
ledge symbology in profile views.

If you have drawn cave maps and had them published, please consider
participating. Simply email a request to me at dwightliv at verizon.net, and
I'll send you a survey form.

Thanks

Dwight
Maryland, USA
NSS 27411