This is a good video, maybe one of the best this year so far. https://www.youtube.com/watch?v=I_7gjhvss-c
I do not see where the manufacturer of the cordless-drill, sponsored this expedition in any way shape or form, but it is on their YouTube Channel. http://ariocavesproject.com/
_______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers