Agreed - which makes it all the stranger that the indicated depth on the
plan legend is 13m - which includes the surface centerlines.
Duncan
On 24/03/2017 11:26, Stacho Mudrak via Therion wrote:
Hmm, but it looks to me, that scale is only up to altitude 481m,
which is altitude of entrance. No
Hmm, but it looks to me, that scale is only up to altitude 481m, which is
altitude of entrance. No surface centerline taken into account.
S.
On 23 March 2017 at 16:17, Duncan via Therion wrote:
> Yes the entrance is marked.
> I've attached the Aven view with entrances highlighted (Therion gene
Yes the entrance is marked.
I've attached the Aven view with entrances highlighted (Therion
generated 3D file).
Note that the surface legs have been excluded from the Aven presentation.
Entrance was declared as follows:
cs OSGB:XX
fix 21 X X 480 # Tweaked to match Google Earth
Is there entrance marked?
m.s.
On Mar 23, 2017, at 02:04 PM, Duncan via Therion wrote:
We surveyed the surface above an old mine to get a feel for how thin the
roof is.
See attached Loch screenshot.
Unfortunately, the surface legs are being included in the Depth value
displayed on the Plan
