New Hats available at the Thunderhill.com Online Store Next Open* Test Day Friday June 14 For Motorcycles Only The June 22 Street School Is Full. Click Here for the Entry List Directions: Interstate 5 North 1 hour from Sacramento, West on Highway 162 7 miles west to the track entrance Administrative Offices: (530) 934-5588 (530) 934-7275 (fax) PO Box 966 Willows, CA 95988 Email Us!