1-2 seats from bay area to standing rock

We have extra space in a three car caravan we're trying till fill with experienced drivers. If you can leave tomorrow and don't have a whole lot of gear (one hiking backpack and a sleeping bad should be fine) please let us know! If you've got a car that wants to join our carvan and could haul some supplies, let me know also! We do not have tent space once we get there. We will be headed back to the bay area the following sat and you are welcome to join us on the return leg as well if that works out for you. 
Hunter - 9702370747