A few of my friends and I are planning on going on a road trip after high school and we were trying to figure out about how much it would cost. We plan on starting in Fort Worth, Tx, then through Colorado, up to the south eastern corner of Wyoming, then back down through Kansas and Oklahoma. I know it's impossible to figure out the exact cost, but does anyone have an estimate of how much it would cost for all four or five of us (not including extra stuff like national park fees)?