There is no place called Valley Forge in Tennessee. Valley Forge is famously associated with the encampment of the Continental Army during the winter of 1777-1778 during the American Revolutionary War. This Valley Forge is located in Pennsylvania.
It's possible you're thinking of a different location, perhaps one with a similar-sounding name in Tennessee, or you might have misremembered the state. If you can provide more details, such as a nearby town or any other landmarks, I might be able to help you locate the place you're thinking of.
