I'm located
here now. There is access to a pretty nice chunk down the road to the SE, but I found a trail in the green finger just to the N which leads to the powerline. I used to run a loop on this power line from my old place, and there is a very good trail continuing N down that same reentrant from the powerline. I didn't know there was one going south from the PL there, but it comes out within 50m of my front door. Not sure how the access will be through there in summer though.
I have a color hardcopy of the piece you guys maped farther south and I run with it there occasionally. daddy-o told me this weekend he has an OCAD base of other parts of the lake already. Would be nice to find some engineering-type maps someplace to start with. There are several nice chunks around the lake. You guys have alread mapped a big one. The area directly E across the lake from your map is another excellent piece. The area around me might work out nicely if I can tie it all in through my complex to make it effectively wider.