I am planning an August trip into Saganaga Lake.  Part of the trip I wanted to explore the far eastern areas of Sag, outside of Quetico Park boundaries.  I see there is another designated park (can't come up with the name off hand) and somewhere I read in Ontario Parks info that it is an "unregulated" park, but one should obtain a permit to use it...but then I could not locate a place to get the permit and/or what it cost and what were the rules, etc.
Does anyone know more about camping in this area?

La Verendrye is definitely a non-operating park. See the following link and contact info... (You need to Login or Register to view media files and links)

Here is a  quote from Wikipedia on LaVerendre':
The park is a "non-operating" park, meaning no fees are charged and no staff is present with only few services offered. As part of the international boundary, the portages, lakes, and waterways along the border are open to the citizens of both nations.

That sounds good; do you still think I need to get Crown Land permit too?

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Scroll down and they have a Crown Land atlas that you can make maps from.

You'll be going through Northern Light Lake - an interesting lake with pictographs - with a lodge at the eastern end (Northern Light Lake Lodge). A few years ago, we entered and exited from Quetico that way. Some of that area was affected by a major forest fire a few years ago (I think it was the Ham Lake fire), not to mention that the effects of the infamous 1999 blowdown are still very evident.