If you search for 545 Sudbury Rd, Stow, MA 01775 on Google Maps, you'll get close to the launch. It's between that point and Dawe's Lot.
You can find most types of structure and cover to fish: Pads, slop, shallow cover, docks, drop-offs, deeper water. I don't have enough time on Boone to know what works when. Look at weather conditions and time of day, and take your best guess at a couple of these that might work. The type/speed of your boat will probably dictate which of these will be available. The first few are mostly concentrated in the areas close to the ramp, the latter are out in the further away basins. At least that is my recollection of it.
Good luck!
Posted Wed Jul 13, 2011 12:05 pm