Howdy AB.....

We paddled the north fork of the Flambeau last year the weekend after Memorial Day.  I would expect Memorial Day to be a bit busier than the following weekend, however.  

There are quite a few campsites along the river but plan to set-up camp no later than mid-afternoon.  That should assure you of a campsite.

Many of the campsites have more than one tent pad so you should be ok.  Just plan accordingly and adjust for the numbers of people on the river.  A beautiful, hot weekend will bring out the canoers.  A cool, rainy weekend (aren't all Memorial Days like that?) will keep the numbers down.

If you need some specifics about the Flambeau, I'll try to help you the best I can.  It's really a great ride.