From a press release:

Cascade Tracktime 2005 Schedule:

3/21-22 Portland International Raceway
4/25-26 Portland International Raceway
5/23-24 Portland International Raceway
8/9 Portland International Raceway
8/18 Portland International Raceway
9/26-27 Portland International Raceway
10/10 Portland International Raceway

For additional information, Cascade Tracktime, 16275 SW Waluga Drive, Lake Oswego, OR 97035, (503)409-4727, [email protected].