Did not go far into Howard Lake, as the adventure interest of my crew was quickly turning into a go fish at the dam interest, so can only say west end of Howard is shallow. Water was clear. Trail suggested not visited in past couple of years.
As far as a campsite goes, we saw one crew camped on north side of the inlet from Rawn Narrows towards its east end, near where the water grass wall was. Looked like a rocky point and I suspect it was rather buggy. Water is shallow there. It may mean something that as we paddled in, this crew was leaving the inlet and going south into Rawn Lake to have a day of fishing.