To be precise, you'll need to consult a repair manual specific to your 2001 Dodge Caravan's engine. The engine type (e.g., 3.0L, 3.3L, 3.8L) will determine the exact location and appearance. A repair manual will have diagrams and pictures showing the exact placement.
Looking at online images of a 2001 Dodge Caravan engine bay might also help you locate it visually once you have a better idea of where the throttle body is situated. However, using a repair manual is the most reliable method to avoid any mistakes.