First of all, Google Maps now has PV and all of Jones Bend Road available in Street View:
HERE!
But this is the reason I've posted in this particular thread... I've solved the "Peninsula Village or Blount County Park?" issue!
Unfortunately my conclusion will be disappointing to anyone who was hoping they'd found a whole peninsula open for camping, because PV is actually not a public park.
HOWEVER there are 22 acres on the peninsula that are publicly owned by the Tennessee Valley Authority, and that land backs right up to the girls cabins! If you want to access it you'll need a boat, or walk along the shoreline easement from Wrights Ferry Road.
Here is the 22 acre parcel of land on the TNMap property tax records website, click on the "IDENTIFY" tab and choose the large centered parcel (#001_004.00)
This information is also available
here.
Also, if you look at the topographic map
here, you can see the same area outlined. There might even be a purple arrow from the words "Jones Bend Blount County Park" to the area, but it blends in so well I didn't notice it before.
I have sent a request to the TVA for more information, and I'll keep you all updated!