Okay, here's part of it and my theories, first visit in 30 years.
The tunnel which is next to the train line, was possibly a train tunnel, due to the swamp and marsh lands that were next to the Mountain 100 years ago. The tunnel has a date brick of 1905 on it, and I'm guessing it may have caved in on the other end when it was no longer used. Just a guess, but there are no signs of an exit on the opposite sides. I had to get permission to get near this tunnel entrance that is now fenced all the way around, along with a storage yard. A lady at the company that gave me permission to take pictures from within their truck yard said that someones working on an article about the tunnel.
These are air vents most likely for the (train?) tunnel, on the side of the mountain. There is also a waterline (lower right - round steel cover) that is running under ground and, marked as such. The guage in the cover, if working read 40 psi. After hiking around for close to an hour, I could not find the upper tunnel, there haven't been any fires on this end of the mountain in sometime, and it is overgrown quite a bit. Gave up, after slipping and falling only once.
Abandon peices of old steel pipe (gatorade jug for size comparison)
Unknown, possibly ladders onto some type of structure once?
Big fire south of us has created heavy haze and orange skies, so these pictures aren't as clear as I'd have liked, let alone a setting sun.
_________________
Roger Cain
www.sfahistory.org
http://groups.yahoo.com/group/Stearman/
We must limit politicians to two terms:
one in office and one in jail.