Milton Marks / Richmond Dist. Branch SF Public Library ... 345 9th Avenue, SF, CA 94118, USA.
Meet on 9th Ave. side of library (between Clement & Geary). Bus routes #38, #2, and #1 will get your there from the east or the west. Street parking on Geary is usually OK after 6PM.
Expect fog, wind, cold, and generally miserable weather to frost your bits and make you understand the coldest winter Olympics you've never been to could be this sh*tty summer trail.
To make the most of this sh*tty trail, be sure to pre-lube with a half liter of German lager and two bratwursts with sauerkraut at Steins. So pre-lubed, you shall be certain to blaze through trail like an East German Olympian of yore. (Deutsche Demokratische Republik style armpit hair is recommended -- for warmth from the fog, of course. But it is totally optional.)