[Tagging] Orientation of an adit?

[Zecke]

Please note that www.historic.place displays the orientation of adits. 
As it can be seen here:
http://gk.historic.place/historische_objekte/translate/en/index-en.html?zoom=17&lat=49.27361&lon=6.9515&select=n2218896180&pid=KmHaSaHe

We evaluate the direction tag, Please note that the direction is seen 
from the underground gallery outwards.

See also:
http://wiki.openstreetmap.org/wiki/Key:direction

Regards,
Carsten

Am 10.03.2017 um 14:48 schrieb Tod Fitch:
> There are a number of abandoned adits and mine shafts in an area I’ve done some mapping in. When looking at old USGS topographic maps of the area, I’ve noticed that they used to align their symbol for an adit to show its orientation.