SoCal's toughest trail run: 'It keeps going up and up and up...'
For my money, Bulldog Road, known simply as "Bulldog" in trail running circles, is the gnarliest, lung-searingest, Achilles tendon-strainingest, soul-suckingest mountain trail run in Southern California.
And I've run a lot of trails.
So has Mark "Jake" Jacobson, a veteran marathoner who has been...