Jim, I assume you are driving down I-5. If so, you're eventually going to have to get on route 99 to 65 which will go right past Thunder Valley (right hand side.) You can do this either by getting on 99 at Red Bluff which will get you to 65 or continue on to Williams, then take 20 to east to Marysville (99) which again will link up with 65.

Thunder Valley is between Lincoln and Roseville. Fact: It is exactly 601 miles from my front door to the Tropicana which means that is is approximately 615 miles from casino to Casino.

Keep in mind that there are Indian Casinos and card rooms near both main routes (I-5 and route 99.)