I think it was compass and pace, and he WAS a good sketcher. I've been in one of the caves he mapped, with his map. The map looks like the cave. Like, man, that was only 400 years ago! He diserves a statue!
I don't have a reference to verify that he was accompanied by his trusty dog, Chow. DirtDoc ----- Original Message ----- From: "Frank Binney" <[email protected]> To: "Texas Cavers" <[email protected]> Sent: Saturday, October 31, 2009 9:03:25 AM GMT -07:00 US/Canada Mountain Subject: Re: [Texascavers] Statuesque Cavers “ Xu traveled more than 5,000 km, surveyed 300 caves by himself” What type of survey instruments did he use? Brunton or Suunto?
