In front of North Bay (the furthest left bay) is a row of nice easy highball aretes. Past these, and a tree, on the way to the route project arete, is a set back wall with two cracks on it's left side. Hidden Depths climbs directly up the middle of the wall between the cracks and the corner at 7b ish. I have a video that I'm going to try and put with some other Millstone bits of footage and post, whenever I can get access to a decent computer.