The Veteran's Convoy, put on by the Veterans of Oregon, takes place on the Sunday before Veteran's Day. I have checked their web site and currently there is no information about the 2012 Convoy.
The goal of this ride is to have the Convoy stretch the entire length of the Veteran's Memorial Highway (I-205), just over 37 miles. The ride starts at the Clark Co. Fair Grounds and ends in Wilsonville.
More info as it becomes available.