by Bob Thrun » Jan 5, 2008 9:15 pm
I could invent a symbol. I invented some of the ones that are on the current list. But I think you should invent something yourselves and place it in a legend on the finished map. You do not need the symbol for the in-cave sketch. If I encountered angel's hair I might just write AH on the sketch every place I found it. I note that angel's hair is a form of oulopholite and resembles some anthodites. I looked at a few foreign lists and did not find anything for angel's hair.
For things that are one-of-a-kind in a cave and not found in many caves, I would draw something appropriate and write the name next to it. Some examples of things that are one-of-a-kind are: Brownies' Wishing Well. Statue of Jesse James, Moonshine Still, and Butterfly (before it got vandalized).
Despite being the longest of any cave map symbol list, the NSS List does not have everything on it. In particular, it is light on lave tube symbols. While the list was being developed, one of the most vocal complaints was that it was too long. The current "Basic List" and "List" was an unsuccessful attempt to placate the short list advocates by playing semantic games. Other combinations of terms were suggested to no avail. When I was working on the Symbols Committee, I realized that nobody would be happy with every symbol. The best we could do was make a list of symbole that are tolerable. After the list was published in the NSS Bulletin there was a demand for revision. Many of the members of the reorganized committed had their pet symbols and would not compromise. That effort eventually wound down. The fact that some features have more than one symbol is the result of bureaucratic compromise by puting 2 or more symbols in