If you have the time, I'd suggest visiting Yellowstone. Though I'd check ahead for road closures due to snow. We went through in July and some of the roads were closed due to snow. If you drive down through Yellowstone and then I-90 through Rapid City as rbaillu suggests, you'll add only 3 hours of drive time to your total. It'd be a great stopping place. 15 hours from Victoria to Yellowstone then another 21 to chicago.
Last edited by oxburger; 07-07-2009 at 06:27 AM.
By the time I walk out of here, I'm going to be a lean, mean, prepress machine...