Hi David, yes it was solid rock, there were two chambers but possibly more - one went straight ahead and stopped, and the other made a right turn, then another right turn - possibly another exit but we didn't go to the bottom of it. Could more or less stand up in it. Lots of frogs!
One of the hikers with us on that day has found this link which matches what we found: https://industrialhistoryhk.org/mystery-buildings-near-stanley-industrial-connection/ - I will update the references from Japanese tunnel to old mine and send that website a link to this page too. We did see the foundations of one building nearby but not the remains of a rail track or anything else industrial. Need to go back some time with a machete and better prepared.
Recently I discovered a similar cave relatively nearby. It looks like a natural cave, but on further inspection, it has a lot of manmade features, such as a stone platform of possible Japanese origin, and a large entrance cutting that tapers off into a manmade trench
Comments
That looks a lot tougher rock
That looks a lot tougher rock than the usual crumbly stuff the tunnels are dug through.
Is it just a straight tunnel into the hill, or does it have multiple branches / entrances?
Cave / Tunnel
Hi David, yes it was solid rock, there were two chambers but possibly more - one went straight ahead and stopped, and the other made a right turn, then another right turn - possibly another exit but we didn't go to the bottom of it. Could more or less stand up in it. Lots of frogs!
Looks like it is an old mine
One of the hikers with us on that day has found this link which matches what we found: https://industrialhistoryhk.org/mystery-buildings-near-stanley-industrial-connection/ - I will update the references from Japanese tunnel to old mine and send that website a link to this page too. We did see the foundations of one building nearby but not the remains of a rail track or anything else industrial. Need to go back some time with a machete and better prepared.
Possible secondary mine
Recently I discovered a similar cave relatively nearby. It looks like a natural cave, but on further inspection, it has a lot of manmade features, such as a stone platform of possible Japanese origin, and a large entrance cutting that tapers off into a manmade trench
link: https://gwulo.com/node/60553#17~22.23470~114.20630~Map_by_GovHK-Markers….