To find it:
1. Remove the cargo cover: If your Caravan has a cargo cover, remove it.
2. Look for a panel or carpeting: There will be a section of the floor (usually carpeted) that is removable or hinged. It might be held in place by clips or screws.
3. Lift the panel or carpeting: Underneath, you should find the spare tire, jack, lug wrench, and possibly a towing hook.
If you can't locate it after checking under the cargo floor, consult your owner's manual. It should have a diagram showing the exact location. You can also search online for "1997 Dodge Caravan spare tire location" along with your specific model (e.g., "1997 Dodge Caravan SE spare tire location"). Pictures from other owners might help you pinpoint it.