Deux Rivieres may not be navigable in the traditional sense, regardless of water levels.  Beavers play havoc with it often and it may be a long mud-slog not far south of Twin most of the way to Sturgeon.  Two years ago I took it in a solo canoe and had to walk along the "bank" (and I use that term VERY loosely) while towing my canoe.  My brother and his friend in a tandem struggled even more.  We eventually ended up trading off who towed the tandem to preserve our strength.

If it's calm, there's tons of walleye in the main body of Sturgeon.  Just weave amongst the islands and you'll be stopping often to fight fish.

Lonely has at least one HUGE pike in it...see my avatar for appropriate size details.  Lots of walleye too.