Looking for places to ride in e.bay area, CA NorCal

http://www.employees.org/~calridng/allsites.html has a list of many of California's riding areas.

The Bay Area has a severe shortage of good places that are convenient for short 1/2 day or less trips. On the plus side, there is lots of great riding within 2.5 to 3 hours drive to the north, east and south.

For a short trip, you might consider Carnegie SVRA, southeast of Livermore. It's not that close to Martinez and I don't consider it a premium riding area compared to places like Stonyford, Clear Creek, Middle Creek and Georgetown, but if you are jonesing it will do.

If you can afford it, Club Moto at Altamont Pass is about the closest place to you. Also check your local fairgrounds, some of them have practice tracks.