RE: Northwest corner, I found this thread by Mr. Niceguy to be pretty helpful for how I think of the geography of the area in general. Really helped me to understand some of these named spots and use those named spots to get a feel for the lay of the land relative to the point, depth, how far west/south from straight-out-from-the-shores, etc.
http://www.bigwatersedge.com/bwevb/s...ad.php?t=26698