Boston Brewing Company calls Samuel Adams Dark Depths a Baltic IPA.   It’s certainly dark!  There are heavy roasted grain notes in the nose.   There’s a burst of pine and lemon from the hops in the middle, sweet caramel and a bit of chocolate from the malt in the finish, and a piney bitterness right at the tail end.  This is a big flavor, heavy bodied beer and a nice treat for someone who enjoys a medium amount of bitterness in a strong porter or stout.