Hi Martin - Excellent! More symbols than any sane person could ever use, even if many do not apply to caves.
Thanks! Bill Gee On Tuesday, November 11, 2014 20:00:27 Martin Sluka wrote: > Something for inspiration: > > http://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec10.pdf > > http://pubs.usgs.gov/tm/2006/11A02/ :D > > m.s. >