Hi Elliiot,

This is great work and incredibly interesting. A few years ago I was having Lunch at a restaurant on Fleet called Tyson’s (not sure what it is now) just a few doors down from Kisling’s. I got talking with the bartender/owner and he mentioned this tunnel that was under his place. Well we went down and he showed it off. There was a rickety wooden door/gate and a tunnel probably 4 feet wide by 5 feet tall. There were cement steps down into the tunnel. I was too chicken to go more than three feet in. He mentioned that it become flooded with water a few yards in and that the tunnel supposed goes all the way to Patterson Park. I took a few pics of the entrance and then went back to lunch. I still think about it every now and then and always was curious as to the history.

Needless to say, looking at your map it looks like it may be connected with your underground stream research. Are you familiar with the Tyson’s tunnel? Do you think it is part of this stream system?

Thanks Andrew