A friend and I are driving from just east of Chicago to Northern California. Leaving late October and have to be in California with-in 4 days. We plan to drive I-80 pretty much straight to Cheyenne, WY before we stop for the night. From there we are somewhat flexible but need to spend as little as possible. We're looking for great things to do/see near I-80. We know we will stop at the Bonneville Salt Flats. That's our only definate right now. Any input would be great. Thanks in advance.