The USAC has announced the location of Junior Nationals for 2008.
Road: Orange County, CA--starting August 7th. Venue TBA
Track: ADT Center--Carson, CA--starting August 14th
This is an indoor, wooden velodrome, with 45 degree banking. In 2004 they opened its doors to host the Junior Track Nationals. I recommend each rider get in some training at that track before registering for Track Nationals, as it takes some time to get used to its banking. Visit their website--lavelodrome.org--for practice session descriptions.