Update:  6-8 October 2007, trying to find an alternative to the canoeing in the BWCAW (due to the distance from Tulsa, Oklahoma), my wife  and I floated the lower Buffalo River (23 miles).  THe scenery was unparalleled and there were very few on the river (saw 10 people spread among three groups) in three days on the river.  The only drawback to the trip was the water level.  There was only 2.5 feet at the gauge on Highway 14, and the water should have been at least 3.5 feet.  I will not float it again without at least the 3.5 feet level.  The fatique at the end of each day was magnified several times by the need to get out and push in the low water areas.  We had floated the Eleven Point River (Missouri) about six weeks ago, but the Buffalo is a better float.