manayunk, umbria st. not the steepest descent in manayunk, but coming down the back end it can get pretty fast.
terrain:
http://www.google.com/maps?f=q&sourc...=15&iwloc=addr
street view (would be easier to descern without the stupid van being in the way):
http://www.google.com/maps?f=q&sourc...58333333333335