Stollenwanderweg - historic hiking trail
The Stollenwanderweg in Bad Bleiberg is a signposted hiking trail along which are historic mining features from Roman tomes to the early 19th Century (see http://members.a1.net/bl.kreuth/bb/stollenww.html ) One or two of the many adits have been recorded on the Data layer as "Man Made Features - Adit" but of course this doesn't show on the public map. Other features are mineral processing sites, water pumping features etc.
As I guess this is all strictly Industrial Archaeology, would it be appropriate to mark the features on the trail with the "historic - archaeological site" marker?