Cave-Surveying digest, Vol 1 #66 - 10 msgs

[Garry Petrie]

Had to laugh, one meter from the walls if possible! Last year we
surveyed a lava tube to 1,600 feet and the average passage height was
only two and a half feet! Fortunately, it was a through trip to another
entrance (exit).

Garry Petrie

> -----Original Message-----
> From: cave-surveying-admin@survex.com 
> [mailto:cave-surveying-admin@survex.com] On Behalf Of 
> cave-surveying-request@survex.com
> Sent: Tuesday, January 21, 2003 10:46 PM
> To: cave-surveying@survex.com
> Subject: Cave-Surveying digest, Vol 1 #66 - 10 msgs
> 
> Message: 7
> Date: Tue, 21 Jan 2003 11:31:20 -0700
> From: P A Hill & E V Goodall <goodhill@xmission.com>
> 
> To bring this back around to another thread on this list, that would 
> suggest a much larger positioning error than a 1 cm mark on a 
> rock, but certainly less than shooting to each others headlamp or any 
> other such lower precision technique.