My sister, roommate, and I are planning a trip out west to California from Minnesota. I graduate this year from college and want to go out with a bang. Anyways, we plan to do it quite cheap (i.e. camping when we can, if not just sleeping in the car). The goal of the trip is to hit the major National Parks: Black Hills, Yellowstone, Glacier, Redwood forests of N. California. We plan to go straight across to Seattle and then drive down the coast until we hit San Francisco and then cut across back to Minnesota. We were thinking of allotting roughly 2~2.5 weeks for this trip. I was just wondering if that is possible in the time we have. Also if anyone has any tips of where to go, what to see, etc. Any information would be greatly appreciated, thanks!