North portal is a couple blocks south of where F-Line said; it's between Everett and Sumner about at the base of the trees here:
https://www.google.com/maps/@42.3661431 ... 312!8i6656" onclick="window.open(this.href);return false; There are a few granite blocks left on that vacant lot, but you have to fight your way through the weeds to get there. Not really worth the effort.
South portal is between Marginal and Webster here:
https://www.bing.com/maps?osid=3a73e12d ... orm=S00027" onclick="window.open(this.href);return false;
The left portal (the 1894 bore) is sealed except for an extremely small opening, but in good condition. The right portal is filled with junk and is so dusty that visibility is about 20 feet at most; it's one of the scariest-looking places I have ever seen. Aside from security concerns (I had other business in the boatyard when I took that picture), even getting to the portals requires crossing a lot strewn with broken glass, industrial waste, and nasty thorns, some of which you can see in the foreground of the image. While it's a neat piece of history, it's not one that I recommend attempting to visit.