Looks fine to me, but you may want to reverse the direction. Just a few days ago I paddled the Tim from Rosebary to Shah, and the same stretch of the Petawawa on your map, and while it doesn't matter which direction you paddle that part of the Pet in, the Tim had a bit more current to it and I was happy to be heading downriver. That may change by the end of August of course, but lower water levels may give you a few beaver dams to work over heading upstream (on my trip, beaver dams were a complete non-issue and would have been so in either direction). 

Agree with above...  Only other pieces I'd add are:

-The Tim R can have lots of beaver dams within the highlighted section
-I seem to remember water levels being quite low Getting onto Misty L from Little Misty L...  (around same time of year)...  It added time as we were dragging our boats...  But given rain we've seen this year don't imagine that will be a problem 😄

Have a great trip 😄

If you want to relax things even a little more, one nice trip I've done is spend the first AND second nights on Misty, do the loop through Grassy Bay as a long but doable day trip without your gear on day 2 returning to your already set-up campsite, and then head back as per your final day plan, perhaps spending a night on Queer or Little Trout along the way. You can get all the way back from Misty via Shah/Tim RIver/Ralph Bice in one day (I've done it) but it's a push.

Or reverse the direction as suggested above, in which case it's Misty for nights 2 and 3. I can see the case for going clockwise -- I'm not sure if there will be current on the Tim in late August, but the wind from the west can be tough to counter on Ralph Bice.

Good route for wildlife. As for your fishing question, be aware that there are no warmer-water game fish like bass or pike on this route, it's trout country, and in August the trout will be deep in the lakes. You can go after them if you have a deep-water strategy, but you probably won't catch them by casually flipping grubs or spinners around. The possible exception would be the odd brookie hole along the rivers you're travelling, try at the bottom of waterfalls etc. Shah Lake doesn't have any trout, I think just perch.

Uppa wrote:

There's really one one campsite of note on Shah, which is the eastern point site. It's nice... not stunning, but nice.

We were at Shah last August (2016), arriving too late to obtain the campsite we were hoping for, and the one I believe Uppa speaks of.  Instead we ended up at the campsite just south of that eastern peninsula site, just to the right of the portage originating at Pandion Pond (via Misty). 

At first I was little bitter looking across at the "gentleman" sitting in his camp chair in the water, basking in the late afternoon sun on what looked like a far superior site from a distance.  However, that more southern site grew on me for the short time we were on it.  The fire pit and benches are about as near the water as one could get without being in it.  There is a bit of a step down the water, but it was sandy bottom.  There is a bit of a hike up a hill to the only viable tent pad we found. 

I guess I'm trying to say all is not lost if the best on that lake is taken.

Your route has some similarities to the one we took last year that landed us on Shah.  The length of travel seems ambitious to me, but I seem to move a lot slower than a number of people in this forum.  Some of my favourites of that trip that overlap with your own were one of the portages (yes a portage!) from McIntosh into McIntosh marsh (though we did it the other way), and the paddle through McIntosh Marsh and Grassy Bay. 

Take care,
Shaggy.

Glad to see you took out that section of the Tim. We have done Little Trout to Big Trout via the Tim and it was 7am to 7pm straight. Lots of switchbacks and dams. 

 

Also that rangers site on Timberwolf is primo. Right on a point on the island with some great hammock trees at the tip.